The Radical Firearms FP7.5-5.56M4-7RPR is an AR-pattern pistol chambered in 5.56 NATO. It is configured with a 7.5″ M4 profile barrel constructed from 4140 chrome moly vanadium steel with a Melonite finish. The barrel uses a 1:7 right-hand twist and is threaded 1/2×28 for muzzle devices.
The carbine length gas system uses a low profile .750 gas block with M4 feed ramps. A 7″ RPR Radical Parallelogram Rail free float M-LOK handguard provides modular accessory mounting.
The upper and lower receivers are made from forged 7075 T-6 aluminum with MIL-STD configuration and Type III anodized finish. Standard AR-15 pattern controls include MIL-STD charging handle, forward assist, and dust cover. A pistol buffer tube is installed and a 30-round magazine is included.
Key Features:
• Caliber: 5.56 NATO
• Barrel Length: 7.5″
• Barrel Profile: M4
• Barrel Material: 4140 Chrome Moly Vanadium
• Barrel Finish: Melonite
• Twist Rate: 1:7 RH
• Thread Pitch: 1/2×28
• Gas System: Carbine Length
• Gas Block: .750 Low Profile
• Handguard: 7″ RPR Free Float M-LOK
• Upper Receiver: Forged 7075 T-6 Aluminum
• Lower Receiver: Forged 7075 T-6 Aluminum
• Charging Handle: MIL-STD
• Forward Assist: MIL-STD
• Dust Cover: MIL-STD
• Buffer Tube: Pistol Tube
• Magazine: 30-Round 5.56 NATO
Manufacturer Specifications:
Caliber: 5.56 NATO
Barrel Length: 7.5″
Barrel Profile: M4
Barrel Material: 4140 Chrome Moly Vanadium
Barrel Finish: Melonite
Twist Rate: 1:7 RH
Thread Pitch: 1/2×28
Gas System: Carbine Length
Gas Block: .750 Low Profile
Handguard: 7″ RPR Free Float M-LOK
Upper Receiver: Forged 7075 T-6 Aluminum
Lower Receiver: Forged 7075 T-6 Aluminum
Charging Handle: MIL-STD
Forward Assist: MIL-STD
Dust Cover: MIL-STD
Buffer Tube: Pistol Tube
Magazine Capacity: 30 Rounds
FAQ:
Q: What is the twist rate of the barrel?
A: The barrel uses a 1:7 right-hand twist.
Q: What handguard is installed?
A: A 7″ RPR free float M-LOK handguard.
Q: What gas system does this use?
A: Carbine-length gas system.
Q: Is the barrel threaded?
A: Yes — 1/2×28 threaded.
Q: How many rounds does the included magazine hold?
A: 30 rounds.
Brought to you by Black Bayou Armory.
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