Sons of Liberty Gun Works M4 L89 Broadsword SPR 6mm ARC Barreled Upper Receiver - 13.9" - No Muzzle Device

Manufactured by Sons of Liberty Gun Works

Details

Gear up for your next build with the Sons of Liberty Gun Works M4-L89 Precision AR-15 Barreled Upper, engineered for top-notch performance. The Broadsword upper receiver features a precision-crafted 13.9" barrel chambered in 6mm ARC with a 1:7 twist. The 416 stainless steel barrel, enhanced with a black oxide finish, delivers unmatched durability and corrosion resistance. This model deletes the muzzle device allowing you to pin and weld your favorite suppressor mount. Machined from a billet of 7075 aluminum and sporting a Mil-Spec MIL-A-8625F anodized finish, this upper receiver is built to withstand the rigors of intense use.

Features:

13.9” match barrel chambered in 6mm ARC
416 stainless steel barrel material
1:7 twist rate
5/8x24 TPI
.750 gas block, mid-length gas system
M4 feedramp extension
13” M89 Wedge Lock handguard
Billet machined 7075 aluminum upper receiver
Mil-Spec MIL-A-8625F anodized finish

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Specifications

Barrel CoatingBlack Oxide

Barrel ContourMedium

Barrel Length13.9

Barrel LiningStainless Steel

Barrel Material416 Stainless Steel

BrandSons of Liberty Gun Works

Caliber Gauge6mm ARC

ColorBlack

FinishHardcoat Anodized

Gas System LengthMid-Length

Gas System TypeDirect Impingement

Handguard13 in Freefloat Rail

Thread Pattern5/8 X 24

Twist Rate1:7

California Prop 65 warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

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