101% Original
Lowest Price
Fast Shipping
101% Original
Lowest Price
Fast Shipping
NEW – FACTORY FN 509 Compact 9mm Lower Frame Assembly Flat Face Trigger Compact Black
$279.99
8 products sold in last 6 hours
Selling fast! Over 6 people have in their cart
Orders placed now will ship within 1–2 business days — fast, reliable fulfillment from TCM Stock.
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- Order Processing : Typically ships within 1–2 business days
- Shipping : Fully tracked and securely packaged
NEW Factory FN 509 Compact 9mm Lower Frame Assembly Flat Face Trigger Black
This is a brand new, factory OEM FN 509 Compact lower frame assembly in black. Designed to deliver full-size performance in a compact platform, this complete lower frame comes fully assembled and includes all internal components. Built with enhanced ergonomics and ambidextrous controls, the FN 509 Compact platform offers superior control, reliability, and adaptability.
This lower frame is compatible with FN 509 Compact 9mm platforms and supports a wide range of FN 509 magazine configurations, making it ideal for replacement builds or OEM upgrades.
Key Features:
- Factory OEM FN lower frame assembly
- Complete lower – fully assembled
- All internal components included
- Durable polymer frame construction
- Black finish
- Compact frame size
- Improved flat face trigger for enhanced control
- Fully ambidextrous controls (slide stop and magazine release)
- Enhanced grip texture for superior handling
- Interchangeable backstrap system for custom fit
- MIL-STD-1913 accessory rail for attachments
Specifications:
- Brand: FN
- Model: 509 Compact
- Caliber Compatibility: 9mm
- Frame Material: Polymer
- Frame Finish: Black
- Frame Size: Compact
- Trigger Type: Flat Face
Purchase & Shipping Details:
- FFL Requirement: This serialized firearm component must be shipped to a valid Federal Firearms License (FFL) holder. At checkout, input the FFL name and shipping address. Alternatively, email your desired FFL information after purchase.
- Fast Shipping: Orders ship within 1 business day of payment via FedEx for quick, secure delivery.
- California Residents: This part can only be sold to California residents who are law enforcement officers. The unit cannot be released to non-law enforcement individuals in California.
Upgrade your FN 509 Compact platform with this complete lower frame assembly, offering OEM reliability, enhanced ergonomics, and modern performance features.
| Caliber | 9mm |
|---|---|
| Material | Polymer |
| Model Size | Compact |
| Color | Black |
eBay automated feedbackSeptember 22, 2026Verified
Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issuesu***aSeptember 21, 2026Good draleBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issuesl***8September 21, 2026Very fast shipping and great price. Really happy with this purchase.eBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issueseBay automated feedbackSeptember 21, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 21, 2026Order delivered on time with no issueseBay automated feedbackSeptember 21, 2026Order delivered on time with no issuess***nSeptember 21, 2026Excellent ebayer. Great product, price and fast shipping!eBay automated feedbackSeptember 21, 2026Order delivered on time with no issuesl***4September 21, 2026Very pleased with the fit and quality of this product. It was great to be able to purchase these magazines as they’re hard to find, and the price was more reasonable than any others that I could locate.7***jSeptember 21, 2026Everything arrived very quickly, was well-packaged and protected. Seller responded quickly to communications. Very good transaction with this seller. Would easily buy again from them. Thank you.9***1September 21, 2026Verified
Parts came in package pretty good, nothing was clean. Use lots of WD-40 and a wire brush to clean all the old grease turns out a third of the parts had surface rust.a***rSeptember 21, 2026exactly as described, fast shippingeBay automated feedbackSeptember 20, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issues
eBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issuese***oSeptember 19, 2026Great sellereBay automated feedbackSeptember 19, 2026Order delivered on time with no issuesi***zSeptember 19, 2026Great canik OEM case with some of the stuff that comes with the guneBay automated feedbackSeptember 19, 2026Order delivered on time with no issues7***4September 19, 2026The slide looks great! Thank you for the fast shipping! Would do business again!eBay automated feedbackSeptember 19, 2026Order delivered on time with no issues
2***xSeptember 19, 2026OEM quality product in new condition. Great value for the money.e***lSeptember 19, 2026Great seller, quick ship, as is described7***1September 19, 2026Fast Shipments***sSeptember 19, 2026Item as described and shipped fast8***eSeptember 19, 2026Great product and the case was like new. Great communication and customer service. I highly recommend this seller. Very satisfied.9***sSeptember 19, 2026Verified
Mag catch was out of spec and won’t work. Took a while to ship it too. I’d suggest buying from anyone else. Luckily I have a 3d printer and was able to print a new mag catch for less than a dollar. Only thing I used was the spring because surprisingly that was in spec.+0eBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 19, 2026Order delivered on time with no issues0***pSeptember 19, 2026Like new conditioneBay automated feedbackSeptember 19, 2026Order delivered on time with no issueseBay automated feedbackSeptember 17, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issuess***rSeptember 16, 2026Good bag, as advertised, everything was legit & good priceeBay automated feedbackSeptember 16, 2026Order delivered on time with no issues7***dSeptember 16, 2026Fast delivery. Excellent communication. Item is better than described. Excellent packaging. A+++++E-Bayer.eBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issues1***aSeptember 16, 2026Very nice eBayer with fast transaction and nice items.t***6September 16, 2026Great seller. Fast shipping !! Once paid it was sent within 12 hours or purchase. Will purchase from againeBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issueseBay automated feedbackSeptember 16, 2026Order delivered on time with no issuesm***aSeptember 16, 2026TCM is a great company to do business with. I certainly recommend them to everyone.eBay automated feedbackSeptember 16, 2026Order delivered on time with no issueso***hSeptember 15, 2026Arrived quickly, packaged well. Is in pristine condition.4***0September 14, 2026A great magazine._***iSeptember 14, 2026Pfroduct was not new as indicated but in good condition. Fast delivery.y***3September 14, 2026Item was as described. Delivery was fast. Very satisfied7***zSeptember 13, 2026As described and quick shipping. A+z***nSeptember 12, 2026Amazing item super fast shipping new as advertisedm***zSeptember 12, 2026Couldn’t be happier . Case is brand new and seller is the absolute best . Fast shipping and incredible valuea***dSeptember 12, 2026Just what I needed thanks alotp***rSeptember 12, 2026Excellent transaction,well packed ,fast shipping.4***lSeptember 12, 2026Great to deal with5***dSeptember 12, 2026Good Sig Sauer product,as described. Little delay on shipping but communication with seller was excellent. Value is good.a***iSeptember 12, 2026new item as described, fast shipping & communication A+++++o***tSeptember 12, 2026Good communication, quick shipping, as described!m***tSeptember 12, 2026Fast shipping, great product.r***2September 12, 2026Fast shipping A pleasure to do business with0***mSeptember 12, 2026Good buye***sSeptember 12, 2026Item was NIB and excellent. Fast delivery. A great addition to my Airedale collection. Will do business with seller again.eBay automated feedbackSeptember 10, 2026Order delivered on time with no issueseBay automated feedbackSeptember 9, 2026Order delivered on time with no issueseBay automated feedbackSeptember 9, 2026Order delivered on time with no issues2***iSeptember 9, 2026Fast shippingj***hSeptember 9, 2026Excellent seller. A++j***hSeptember 9, 2026Excellent seller. A++eBay automated feedbackSeptember 8, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueso***hSeptember 7, 2026Great selleBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issueseBay automated feedbackSeptember 7, 2026Order delivered on time with no issuesq***uSeptember 7, 2026Great product and recommend sellerb***dSeptember 7, 2026GREAT SELLER!eBay automated feedbackSeptember 6, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issuesb***sSeptember 5, 2026Superfast shipping. Great transaction and communication. Very pleased.eBay automated feedbackSeptember 5, 2026Order delivered on time with no issuest***tSeptember 5, 2026No problemseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issueseBay automated feedbackSeptember 5, 2026Order delivered on time with no issuesh***iSeptember 5, 2026Shipped quickly, perfect fit!eBay automated feedbackSeptember 5, 2026Order delivered on time with no issues_***fSeptember 5, 2026Item exactly as described.eBay automated feedbackSeptember 3, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issueseBay automated feedbackSeptember 2, 2026Order delivered on time with no issuese***rSeptember 2, 2026Awesome seller. Fast shipping. Product as describedeBay automated feedbackSeptember 1, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issuesr***gAugust 31, 2026Great item. A+!t***8August 31, 2026The brand new barrel and slide appeared in perfect condition. I mounted the slide and barrel on an existing gun. It functioned perfectly. It was a bit expensive but wasn’t as costly as another gun. Thanks for shipping quickly!a***nAugust 31, 2026Flawless transaction. Perfect fit.eBay automated feedbackAugust 31, 2026Order delivered on time with no issuesk***aAugust 31, 2026just as expectedeBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issuesd***gAugust 31, 2026Item is new as described. Solid construction and materials. Great price and will look and function as designed once I install them. Good communication from the seller and fast shipping. I'd do business with them again.eBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issuese***0August 31, 2026A+eBay automated feedbackAugust 31, 2026Order delivered on time with no issuesa***iAugust 31, 2026Highly recommended. Excellent value and great service. Well packed and quick shipping. Great quality and brand new. Thank you. 10/10.c***iAugust 31, 2026Always get my kits from him.w***sAugust 31, 2026Arrived quickly. Has a scuff on the top either got during shipping or more likely was previously used. It didn’t come with the box that was pictured. I also had to track down screws that were the right length for me but I kind of figured that part based on the photos. Overall really happy with it, only not sure if it’s actually new or not. I’m sure Vortex will warrantee it if anything goes wrong, but it is working perfectly as of now. I’m happy to have gotten a good deal on it.eBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issues1***kAugust 31, 2026Good seller shipped item on time2***5August 31, 2026FAST SHIPPING! EXCELLET EBAYER !eBay automated feedbackAugust 31, 2026Order delivered on time with no issueseBay automated feedbackAugust 31, 2026Order delivered on time with no issuesj***6August 31, 2026Exactly as advertised.eBay automated feedbackAugust 31, 2026Order delivered on time with no issuese***eAugust 31, 2026Item as described. Fast shipping. Packaged with care.t***iAugust 31, 2026Magazines were new. Also took them to the range today and they fed with no issues through multiple reloads.e***pAugust 31, 2026Didn't come with all items pictured. Missing a couple of items. The items pictured is why i used this seller. Fair price and fast shipping. Wouldn't use again.t***tAugust 31, 2026Thanks Guys!o***lAugust 31, 2026Quick to respond to questions and got squared away with shipping pretty quickly.d***eAugust 31, 2026Great purchase for my FN Reflex micro compact. Outstanding quality PVD coating. Brand new condition. Looks great on the hand gun. It also came with FN Reflex mounting screws for the Vortex Defender-CCW. Thanks for the fast shipping. A+ seller.c***mAugust 31, 2026Excellent selection, when everyone else was out of stock. Great price too.+0e***eAugust 31, 2026Item as described, well packaged, fast shipping, thankseBay automated feedbackAugust 31, 2026Order delivered on time with no issuesk***aAugust 31, 2026Great seller, item was as described, packaged nwell and shipped fast. A+++ seller!w***dAugust 31, 2026Came without package but okm***aAugust 31, 2026Just as described, looks brand new 👍 shipping was a little higheBay automated feedbackAugust 31, 2026Order delivered on time with no issues-***3August 27, 2026ExcellenteBay automated feedbackAugust 26, 2026Order delivered on time with no issuesr***bAugust 26, 2026Item as described. Fast shipping. Fair price.eBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issuesv***7August 26, 2026Great seller, quick shipping. Items showed up as described.0***eAugust 26, 2026Item was exactly as described and works perfectly. Much better and cheaper than buying a complete pistol. Looks brand new. Item arrived timely. Would recommend.a***pAugust 26, 2026Items were high quality and mint condition. It looks like they shipped directly from the FN factory. Would buy again. A+eBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issues-***sAugust 26, 2026The caseeBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issues0***sAugust 26, 2026A+ seller A+ quality exactly what I wanted3***uAugust 26, 2026Everything was good. Quality of product is great. Shipping time was longer than expected. Not the vendor fault. They messaged me with updates. Combined shipping and gave me refund on its cost.o***cAugust 26, 2026Experimenting on if the radian Slide will fit onto a the standard version of the Mc9 prime frame, and it slides right on, granted there is a bit of rubbing going on, still working on what’s causing it, but slide came in new conditions, overall happy with my order and gonna continue to investigate the rubbing!s***5August 26, 2026Sig Sauer P320 9mm Complete Slide 3.9" OEMc***aAugust 26, 2026Fast shipping and great price!eBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issues2***2August 26, 2026Brand new magazines. Perfect condition. Great seller.eBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issuesi***zAugust 26, 2026Fast shipping, exactly what’s shown as advertised.s***iAugust 26, 2026Great quality and value, very reputable sellerb***iAugust 26, 2026Well no complaints here condition is new and got it for a great price,also came in the time frame it said it would thank you kindly d***dAugust 26, 2026This is just what I wanted for my older P365 XL. Now I can cowitness the irons with a dot. Seller had this slide in stock, fairly priced and quickly shipped. Thank you very much! Highly recommend.b***lAugust 26, 2026Honest. Trustworthy. Would buy again. Highly recommended.l***aAugust 26, 2026Perfect condition. As described. Great value for the price. Everything is included as pictured. Fast shipping. Great Sellers***yAugust 26, 2026A+ seller fast shipping, thanksl***lAugust 26, 2026Perfect description. Excellent customer communication. Paired nicely with my setup.+1i***gAugust 26, 2026Great product as described. Product arrived in perfect condition. A+ Thanks!2***nAugust 26, 2026Dean play as described. It was well packaged and it shipped fast. Everything was included. It appeared to be brand new.eBay automated feedbackAugust 26, 2026Order delivered on time with no issueseBay automated feedbackAugust 26, 2026Order delivered on time with no issuesp***xAugust 26, 2026Product exactly as described. Really happy with my purchase. Fast shipping and great communication. Would definitely purchase from again.b***lAugust 26, 2026Item was just as described!!b***lAugust 26, 2026Item was just as described!m***hAugust 26, 2026Good seller, I recommend him—excellent.f***fAugust 26, 2026Excellent item, great seller, fast delivery.f***fAugust 26, 2026Excellent item, great seller, fast delivery.n***eAugust 26, 2026Great pricing. Looks good and quick shipping!t***oAugust 26, 2026Shipped fast and was packed well. Item was exactly as described and I am very satisfied with this transaction.m***dAugust 26, 2026Excellent quality, new condition, prompt shipping - Thanks.eBay automated feedbackAugust 26, 2026Order delivered on time with no issuese***-August 26, 2026Great seller, very recommended.e***-August 26, 2026Great seller, very recommended.e***-August 26, 2026Great seller, very recommended.e***-August 26, 2026Great seller, very recommended.e***-August 26, 2026Great seller, very recommended.Load moreVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Please review the following purchase and shipping details before completing your order.
FFL Requirement: This serialized firearm component must ship to a valid Federal Firearms License (FFL) holder. During checkout, please enter the FFL name and shipping address. You may also place your order first and email your preferred FFL information after purchase.
Fast Shipping: Orders typically ship within 1 business day after payment is received. All qualifying orders are shipped via FedEx for fast, secure delivery.
California Residents: Please check with your receiving FFL before ordering to confirm this item can be legally received and transferred in your state. The customer is responsible for verifying all state and local requirements prior to purchase.
Disclaimer: Customers are responsible for reviewing and confirming all shipping and FFL information prior to order submission. Failure to provide accurate or incomplete information may result in delays, return shipments, or additional fees. Any costs associated with correcting shipping errors, including return shipping and applicable restocking fees, are the responsibility of the customer.
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