CMMG AR-15 Gunbuilders Lower Receiver Parts Kit
The CMMG Gunbuilder Kit is a customizable lower parts kits for the AR-15 platform. This kit provides all the minor, mil-spec parts generally used in an AR-15 build, while still allowing the flexibilty to add common aftermarket upgrades, such as a pistol grip and match grade trigger components. Customizable lower parts kits offer an economical way to get all the small pieces needed for an AR-15 lower, without wasting money on the parts you won't use!
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Hammer Pin
- Magazine Catch
- Magazine Catch Button
- Magazine Catch Spring
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Selector Detent
- Selector Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin Detent Spring
- Trigger Pin
Does NOT Include:
- Pistol Grip
- Pistol Grip Screw and Washer
- Trigger or Hammer
- Trigger and Hammer Springs
- Disconnect Spring
- Trigger Guard or Roll Pin
Thank you! Your valuable input helps improve our product information and future product selections
Magpul PMAG M2 MOE Magazine AR-15 223 Remington 30-Round...
Add to Cart for PriceClearance — Select Items
Yankee Hill Machine Crush Washer AR-15...
DPMS Gas Tube Roll Pin AR-15, LR-308...
JP Enterprises Trigger Spring Kit AR-15 3-1/2 lb Reduced Power...
UTG Accurizing Wedge AR-15...
DPMS AR-15 Takedown Pin Punch Delrin...
AR-Stoner Magazine AR-15 223 Remington with Anti Tilt Follower...
$12.99 - $18.99Save up to $8.00 (30%)
TAPCO Receiver Extension Buffer Tube Assembly 6-Position AR-15...
$46.99 - $60.99
Hogue Overmolded Beavertail Pistol Grip AR-15 with Finger...
$17.49 - $20.49
Colt Receiver Extension Buffer Tube Lock Ring AR-15, LR-308...
DPMS Takedown and Pivot Pin Detent AR-15, LR-308...
DPMS Ejection Port Cover Spring AR-15, LR-308...
DPMS Trigger Guard Roll Pin AR-15...
TAPCO Multi-Tool AR-15 Mil-Spec Steel...
TAPCO Receiver End Plate Sling Mount Adapter Ambidextrous...
Noveske Receiver End Plate with Quick Detach Sling Swivel...
DPMS Buffer Spring AR-15 Rifle...
Troy Industries Ambidextrous Bolt Release AR-15 Aluminum Matte...
DPMS Buffer Spring AR-15 Carbine...