AR-15 .458 Socom 16" slim profile rifle kit / Alpha Stock / 12" Mlok

AR-15 .458 Socom 16" slim profile rifle kit / Alpha Stock / 12" Mlok

AR-15 .458 Socom 16" slim profile rifle kit / Alpha Stock / 15" Mlok contains all components except 80% lower to complete your AR-15 big bore .458 Socom build. The kit comes WITHOUT 80% lower receiver. All options and modifications to your kit are available on top of this page. All components are Mil Spec and made in the USA. 

Barrel: 16" 4150 CMV Heavy profile, parkerized finish

Chamber: .458 Socom

Twist: 1 in 14”

Thread: 5/8x32

Feedramps: Single

Gas block: .936” steel low profile

Gas tube: Carbine-length stainless steel

M4 flat top upper receiver, forged, Socom style

Forward Assist

Ejection Port Cover

Triport Muzzle Brake

Handguard: Rifle length 12" free float handguard, Mlok design

Bolt Carrier Group: 9310 steel .450 Bushmaster/.458 Socom caliber, nitride, MP tested, Mil spec

AR-15 Charging Handle, Aircraft aluminum

AR-15 Mil Spec Lower Parts Kit: Standard AR15 lower components. Includes everything you need to turn your stripped lower into a complete lower.

Alpha Stock 6-Position Assembly: mil spec buffer tube, 4.8 oz heavy buffer designed for .458 Socom and chrome spring, castle nut and end plate

Please Note: Comes unassembled. Kit does not include sights or magazines. Standard kit fits perfectly any style AR-15 mil spec lower. 

Images may not be an exact representation of the product.

This kit is not an FFL item because some machining is still required on 80% Stripped Lower Receiver.