A Quality, preassembled, RMR-ready G21 build kit.
This Glock® 21-compatible build kit keeps things simple and reliable, offering a classic slide with front and rear angled serrations, an RMR optic cut for your favorite red dot, standard iron sight mounts, and a sleek, durable nitride coating. Preassembled slide!
Of course, you still get an upgrade over the typical factory setup: This kit comes with one of four high-quality, stainless, precision-cut barrels with or without threads. Select your barrel choice above!
Glock® 21 Compatible Build Kit: What's Included
This kit is not a firearm. This Glock®-compatible kit includes a slide, barrel, operating rod with spring, slide parts kit, and frame parts kit. Does not include a frame.
Slide
- Platform: G21
- Caliber: .45 ACP
- Material: 416R Stainless
- Finish: Black Tungsten Carbide
- Features: Vertical rear serrations; Compatible w/ factory iron sights
Barrel
- Caliber: .45 ACP
- Twist Rate: 1:16
- Material: 416R Stainless
- Finish: Nitride Black
Slide Parts Kit Includes:
- Firing pin
- Firing pin spring
- Firing pin spring cup
- Firing pin safety
- Firing pin safety spring
- 9mm Extractor
- Extractor depressor plunger
- Extractor depressor plunger spring
- Channel liner
- Spacer Sleeve
- Steel cover plate
- Polymer guide rod (guide rod, washer, screw)
- Guide rod spring
Slide ships prebuilt for your convenience!
Frame Parts Kit Includes:
- Connector
- Slide Stop Release with Spring
- Locking Block Pin
- Magazine Release
- Magazine Release Spring
- Slide Lock
- Slide Lock Spring
- Trigger Housing Pin
- Trigger Housing with Ejector
- Trigger Pin
- Trigger Spring
- Trigger with Trigger Bar
Sold Separately:
- Stripped Frame
- Magazine
- Iron Sights
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WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Caliber:
- .45
- Size:
- Full
- Model:
- G21
- Platform:
- GLOCK® Compatible
- Caliber:
- 10mm
- Model:
- G20
