Aero Precision Lower with BCA Upper 458 SOCOM 16" Heavy Barrel

NEW Aero Precision Lower with Bear Creek Arsenal Upper 458 SOCOM NO CC FEES

Aero Precision Lower

M4E1 Complete Lower Receiver w/ A2 Grip and M4 Stock

The M4E1 Complete Lower Receiver is the perfect base for your custom AR15 build. 

This complete lower features our new M4E1 Lower Receiver with an A2 Grip and M4 Stock.

Includes:

• M4E1 Stripped Lower Receiver
• M4 Stock
• A2 Grip
• Mil-spec Lower Parts Kit
• Carbine Receiver Extension
• AR15 Carbine Buffer and Spring
• These parts are installed
• COMES WITH A LANCER .458 SOCOM MAGAZINE

Bear Creek Arsenal .458 SOCOM Upper

BC-15 | .458 SOCOM Upper | 16” Parkerized Heavy Barrel | 1:14 Twist | Carbine Length Gas System w/.936 Gas Block | 15” MLOK | with BCG & Charging HandleThis BCA AR-15 complete .458 SOCOM rifle length upper has a 16" heavy barrel with a parkerized finish, and features a 1:14 twist rate, with a carbine length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This .458 SOCOM upper is compatible with any mil-spec AR-15 lower.

SKU:  9187N-UA458CHB16114(P).936-15M3

Weight (lbs):  6.25

Magazine Capacity:  9

Barrel Length: 16"Profile:  Heavy Barrel

Twist:  1:14

Barrel Finish:  Parkerized

Barrel Material:  4150 Chrome Moly Vanadium

Thread Pitch:  5/8 x 32

Caliber:  .458 SOCOM

Feed Ramp:  Single

Flutes:  Non-fluted

Gas System:  Carbine

Gas Block: System0.936

Charging Style:  Rear Charging

Classification:  Complete Upper Assembly

Platform:  AR-15

Bolt Material:  E9310

Receiver Material:  Forged