101% Original
Lowest Price
Fast Shipping
101% Original
Lowest Price
Fast Shipping
Glock 21 Gen 3 OEM Complete Slide Assembly – Includes Recoil Spring and Barrel – NEW
$424.99
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
Glock 21 Gen 3 OEM Complete Slide Assembly – Includes Recoil Spring and Barrel – NEW
This brand-new Glock 21 Gen 3 OEM Complete Slide Assembly includes the recoil spring and barrel, crafted with 100% authentic factory Glock parts for superior durability and performance. Perfect for replacing or upgrading your Glock 21 Gen 3, this complete slide assembly ensures reliable operation and seamless fit.
Key Features:
- Genuine OEM Parts: Made with 100% authentic Glock factory components for long-lasting durability and exceptional functionality.
- Complete Slide Assembly: Includes slide, recoil spring, and barrel—everything you need for a full slide replacement.
- Perfect Fit: Specifically designed for Glock 21 Gen 3 models, ensuring seamless installation and reliable performance.
- Brand New: Fresh from the factory, unused, and in perfect working condition.
Shipping Information:
- Fast Shipping: Ships via USPS Priority within 1 business day of payment receipt for quick and secure delivery.
Upgrade or replace your Glock 21 Gen 3 slide with this high-quality OEM complete assembly for optimal performance and reliability.
Order now to enhance your Glock 21 Gen 3’s functionality!
| Material | Steel |
|---|---|
| Color | Black |
eBay automated feedbackNovember 1, 2026Verified
Order delivered on time with no issues
eBay automated feedbackOctober 31, 2026Order delivered on time with no issues
eBay automated feedbackOctober 31, 2026Order delivered on time with no issues
eBay automated feedbackOctober 31, 2026Order delivered on time with no issues7***7October 31, 2026Muy buen estado 👍
eBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issues
n***nOctober 31, 2026SIG CASE was as described and shipped perfectly in a USPS box! Quality was perfect, condition was new. A Great value with good storage! Appearance is great! Would definitely buy from this seller again!!!!!
eBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issues
eBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issuest***_October 31, 2026GreateBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issues
eBay automated feedbackOctober 31, 2026Order delivered on time with no issues
c***6October 31, 2026As advertised! New condition!r***9October 31, 2026Perfect OEM fiteBay automated feedbackOctober 31, 2026Order delivered on time with no issuesn***aOctober 31, 2026Prompt deliveryeBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issues7***7October 31, 2026Perfect fiteBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issuesj***vOctober 31, 2026Highly Recommendj***vOctober 31, 2026Very reputable. Timely and responsive. Highly Recommend this Seller. Jim VogeleBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issuesl***lOctober 31, 2026Very happy with the purchase on this one. The price was fantastic for what I got which was a OEM CZ P10 7c Optics ready slide with suppressor height sights along with all the internal components minus the barrel which is no big deal. I'm in the middle of building out my p10c currently so this is a big addition and really good for the money. Delivery was also quick.eBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 31, 2026Order delivered on time with no issueseBay automated feedbackOctober 29, 2026Order delivered on time with no issuess***oOctober 28, 2026The magazines appeared to be in great shape and the quality was good. Prices were fair. Seller could have messaged me explaining the refund, but I assumed it was because he did not have as many listed. Overall, A+eBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueso***3October 28, 2026Great prices and quick shipping! A++!!!eBay automated feedbackOctober 28, 2026Order delivered on time with no issues4***yOctober 28, 2026Came exactly as described. Can’t wait to get an optic for it.eBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issuesr***mOctober 28, 2026Awesome seller fast shipping item in great like new condition,great price. well packaged well packaged. Thanks A++++eBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issuesa***mOctober 28, 2026As described with fast shipping, A+eBay automated feedbackOctober 28, 2026Order delivered on time with no issuesr***rOctober 28, 2026Awesome Ebay’er ! Quick shipping and quick to process the order. Item was exactly as described and I’m perfectly happy. I would most certainly do business with this place again,and probably will. Thank you !eBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issueseBay automated feedbackOctober 28, 2026Order delivered on time with no issues1***0October 28, 2026Amazing seller and great delivery!o***oOctober 28, 2026great seller...fast shipping...thanks!!!eBay automated feedbackOctober 27, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issuesr***cOctober 26, 2026Product Received as described! Good communication. Super Quality, Great Value, Good Packaging, Excellent Condition, Appearance Fantastic, and Super fast Shipping! Will Buy Again!!!eBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issues6***6October 26, 2026Amazing quality. Very new condition great appearance great valueeBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issueseBay automated feedbackOctober 26, 2026Order delivered on time with no issuesa***8October 26, 2026Great products! Great service! Buy with confidence!2***gOctober 25, 2026Quick fast shipping and product in excellent condition. A+ seller.eBay automated feedbackOctober 24, 2026Order delivered on time with no issueseBay automated feedbackOctober 24, 2026Order delivered on time with no issueso***jOctober 24, 2026Easy to contact, quick to reply, fast shipping and items are perfect in appearance, condition and as expected the exceptional SIG quality. Great value for what I needed, and even combined shipping costs because I purchased multiples.2***9October 24, 2026Wow, perfect brand new, fit just perfect they are SIG perfection delivery was right on time. Everything was as said, Thank YoueBay automated feedbackOctober 24, 2026Order delivered on time with no issueseBay automated feedbackOctober 24, 2026Order delivered on time with no issueseBay automated feedbackOctober 24, 2026Order delivered on time with no issueseBay automated feedbackOctober 24, 2026Order delivered on time with no issueseBay automated feedbackOctober 24, 2026Order delivered on time with no issuesc***1October 24, 2026Thank you!!eBay automated feedbackOctober 24, 2026Order delivered on time with no issuese***tOctober 24, 2026As advertised7***rOctober 24, 2026Great!a***aOctober 24, 2026Fast shipping exactly as described great product thank youa***rOctober 24, 2026Quality products from a quality guy - thanks, Tyler!l***lOctober 24, 2026Everything delivered as advertised. Awesome.o***aOctober 24, 2026Case was in good condition and came with everything in pictures.s***2October 24, 2026Good original equipment at a great price. Great seller, just as advertised and shipping is as good.d***kOctober 24, 2026Great experience. Arrived as described.p***1October 24, 2026Good to goa***aOctober 24, 2026No complaints, thank you! Item was as described and shipped quickly.b***iOctober 24, 2026Excellent. Thank you so much, didn't have a case for my pistol+1m***uOctober 24, 2026Excellent quality items exactly as described. Prompt and professional seller. I highly recommend this vendor. Bid and buy with complete confidence. A+_***aOctober 20, 2026Perfect condition. 5 stars.d***dOctober 19, 2026A+.***eOctober 19, 2026Item was exactly as described. Perfect condition and new. Item performed as expected. Messaged the seller one time (he was on vacation at the time) and received an immediate response answering my question. Short and sweet. Just a perfect buying experience. Would definitely purchase from this vendor in the future.l***oOctober 19, 2026Am***5October 19, 2026Great interaction with seller. Quality product.s***9October 19, 2026Thank you!! Quick shipping, well packaged and item as described!!r***aOctober 19, 2026Item arrived as described and promptlyz***rOctober 19, 2026Not the best value but condition and quality is good and great appearance and fast shipping1***eOctober 19, 2026Packaged for got as describedl***4October 19, 2026Nice!t***mOctober 19, 2026Exactly as described, perfect condition for the price,looks new and sturdy, with everything included in the ad. Great seller!0***eOctober 18, 2026Item described exactly Excellent seller. Good communication. Shipping was fast. Definitely use seller again A++++k***5October 17, 2026Received just as stated from seller fast shipping5***5October 17, 2026Package arrived on time and assembly worked perfectly.3***0October 17, 2026Great product as described, well packaged, would definitely buy from this seller againn***pOctober 17, 2026Excellentt***aOctober 17, 2026Excellent product description. It was packed well and shipped quickly. Thank you.l***eOctober 17, 2026Great slide came in a timely fashion thank youj***hOctober 17, 2026Fast shipping. Excellent seller. A+++a***7October 17, 2026Great seller,good customer service,just as described in listing !!!b***iOctober 17, 2026Quick shipping, great seller!i***3October 17, 2026Great quality , condition. Excellent great value of money appears like new.l***oOctober 17, 2026As describedh***cOctober 15, 2026Fast shipping,great packaging ,a real credit to eBay! A++++++2***xOctober 12, 2026New condition, OEM quality and good value.eBay automated feedbackOctober 11, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 10, 2026Order delivered on time with no issueseBay automated feedbackOctober 8, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issuess***iOctober 7, 2026Better than advertised, fast shipping, great seller.eBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 7, 2026Order delivered on time with no issueseBay automated feedbackOctober 6, 2026Order delivered on time with no issuesb***nOctober 5, 2026As described A+A+eBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issuesr***cOctober 5, 2026A+ seller. Exactly what I needed. Would buy from again. Many thanks.r***cOctober 5, 2026A+ seller. Exactly what I needed. Would buy from again. Many thanks.eBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issueseBay automated feedbackOctober 5, 2026Order delivered on time with no issuesa***3October 5, 2026This was an accident. The cases arrived in excellent condition. Shipping was super fast.a***rOctober 4, 2026Great product accuratea***aOctober 3, 2026Assembly as described. Clean and functional. Looking forward to using it this weekend. Thanks!eBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issues_***pOctober 3, 2026great condition came in very well packed..thank youeBay automated feedbackOctober 3, 2026Order delivered on time with no issueseBay automated feedbackOctober 3, 2026Order delivered on time with no issuesk***5October 3, 2026Box was in great condition and shape shipped fastn***iOctober 3, 2026Perfect came as describedn***iOctober 3, 2026Perfect came as describedeBay automated feedbackOctober 3, 2026Order delivered on time with no issuese***fOctober 3, 2026First rate seller. Item was perfect even had the factory sticker in it. Brand new condition. Seller was prompt in shipping the item. Woukd definitely recommend.eBay automated feedbackOctober 3, 2026Order delivered on time with no issuess***5October 3, 2026Great quality great price works greateBay automated feedbackOctober 1, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issuest***ySeptember 30, 2026Great seller! Fast shipping and product arrived in great shape and as advertised. Would 100% do business again with themeBay automated feedbackSeptember 30, 2026Order delivered on time with no issueseBay automated feedbackSeptember 30, 2026Order delivered on time with no issuesw***1September 30, 2026Fast shipping.l***gSeptember 30, 2026Everything looks good function well. Thank youeBay automated feedbackSeptember 30, 2026Order delivered on time with no issuesi***fSeptember 30, 2026Always a pleasure to deal with. Great quality for the price. Excellent condition. Highly recommendLoad 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 shipping and order details before completing your purchase.
Fast Shipping: Orders ship via USPS Priority within 1 business day of payment receipt for fast and reliable delivery.
Order Accuracy: Please ensure your shipping address is entered correctly at checkout. We are not responsible for delays or delivery issues caused by incorrect or incomplete address information.
California Residents: Before your order can be processed, a clear image of your photo ID must be emailed to contact@tcmstock.com. Orders can only be shipped to the address listed on the photo ID. The ID address will be checked against the order billing and shipping address, and all information must match before the order can be processed.
Compatibility: It is the buyer’s responsibility to verify compatibility with their specific firearm or build prior to purchase. If you are unsure, please contact us before ordering.
Installation: Installation may require fitting or adjustment. Professional gunsmith installation is recommended where applicable.
Disclaimer: By placing an order, the customer confirms that all information provided is accurate. Any costs associated with correcting shipping errors, including return shipping or applicable restocking fees, are the responsibility of the customer.
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