AR-40 4.5" BILLET UPPER RECEIVER PISTOL BUILD KIT W/4" M-LOK HANDGUARD C CUT- BCG-LPK & Pistol Tube Kit

AR-40 4.5" BILLET UPPER RECEIVER PISTOL BUILD KIT W/4" M-LOK HANDGUARD C CUT- BCG-LPK & Pistol Tube Kit
AR-40 4.5" BILLET UPPER RECEIVER PISTOL BUILD KIT W/4" M-LOK HANDGUARD C CUT- BCG-LPK & Pistol Tube Kit AR-40 4.5" BILLET UPPER RECEIVER PISTOL BUILD KIT W/4" M-LOK HANDGUARD C CUT- BCG-LPK & Pistol Tube Kit
  • Product Code: PK40-223B-FML-4C#
  • Availability: In Stock

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Specs
Barrel Length:4 "
Caliber:40 S&W
Twist Rate:1:16
Gas System:BLOWBACK
Muzzle Thread:5/8X24
Muzzle Device:
A2 Flash Hider
Bolt Carrier Group
Included 
Receiver Material:
Billet 7075 T6 Aluminum
Charging Handle:
6061-T6 Aluminum 
Buttstock:
Pistol Tube
Buffer:
7 oz. 
Grip:
Standard A2
BCGNitride