ACT 20" Rifle Length 5.56 NATO A3 15" Lightweight Hex Mlok Upper - W/ BCG and CH

Our ACT Complete 20 inch M-LOK upper receiver comes preassembled with only made in USA components from the 4150 barrel to the Forged upper receiver.

Bolt Carrier Group:

• Enhanced 9310 Steel (Bolt)

• 8620 Tool Steel (Carrier)

• Bolt is shot Peened and MPI

• All BCG components are pre-polished before being processed and then post polished for an incredible shine

• Made in U.S.A.

Upper Receiver:

• Machined from a Mil-Spec 7075 T6 forging Hard Coat Anodized per Mil-A-8625F, Type III

• M4 Feed ramps

• Made in the U.S.A.

Handguard:

• MATERIAL: HARD COAT ANODIZED ALUMINUM HANDGUARD, ALUMINUM BARREL NUT

• PRECISION BORE

• ACCEPTS M-LOK RAIL SECTIONS & ACCESSORIES

• 7075-T6 BARREL NUT

• RAIL LENGTH IS MEASURED ALONG THE TOP

• INNER DIAMETER: 1.36"

• Made in U.S.A.

Charging Handle:

• Standard Charging Handle

• Forged 7075 Aluminum construction

• Mil-Spec Type-III Hardcoat Anodized finish

• Caliber - .223 / 5.56 / 300 Blackout

• Made in the USA