ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver Black

ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver Black. Its equipped with a 5in 4150 CMV barrel chambered in .300 AAC Blackout featuring a fast 1:5 twist for optimal subsonic and supersonic performance. The system includes a .750 low-profile steel gas block 5 3/16in stainless steel micro gas tube and a 5/8×24 aluminum flash can muzzle blast diverter. A full-auto rated nitride BCG with a 9310 MPI-tested bolt ensures reliability. Includes mil-spec charging handle ejection port cover forward assist and complete buffer system with A2 pistol grip. Lower receiver not included. Specifications for ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver: Manufacturer: ABC RIFLE COMPANY Caliber: .300 AAC Blackout Barrel Length: 5 in Barrel Twist Rate: 1-8 Threads per Inch: 5/8×24 Muzzle Device: Muzzle Diverter Flash Can Handguard Length: 4 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: AR Platform Gun Model: AR-15 Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Package Contents: ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver What firearm models does the manufacturer say ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver is compatible with? The manufacturer suggests that ABC RIFLE COMPANY AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver is compatible with AR-15ABC RIFLE COMPANY ARPK300-ML4: AR-15 .300 AAC Blackout Micro Pistol Build 5in Barrel 4in M-LOK Handguard Upper Receiver Black