APF 300 BLK Pistol Complete Upper Receiver, 10.5″ Barrel 9″ M-Lok Handguard

Start your next AR-15 pistol build with this Complete AR Pistol Upper from Alex Pro Firearms! APF is headquartered right here in Alexandria, Minnesota, just about two hours north of The Guide. Point being, we know the folks at APF. We know their products are all designed and built in-house — which means they can deliver outstanding quality at an equally outstanding price!

• 10.5″ 4140 steel mid contour barrel
• 9″ M-Lok handguard for easier re-positioning of accessories
• Pistol-length gas system
• M16 BCG with nitride coating
• Mil-spec charging handle
• USA made

Order today!

Key Specifications

• Item Number: 699236
• Caliber: .300 AAC Blackout
• Barrel: 10.5″ 4140 steel mid-profile
• Barrel twist: 1:8″
• Receiver: 7075-T6
• Gas system: Pistol-length
• BCG: M16 nickel boron
• Charging handle: Mil-spec
• Handguard: 9″ M-Lok
• Muzzle device: A2
• Model Number: UP-551M