AR-10MM 8.5" Pistol Caliber Side Charging LRBHO Complete Upper with BCG – Moriarti Arms

Uppers

AR-10MM 8.5" Pistol Caliber Side Charging LRBHO Complete Upper with BCG – Moriarti Arms

This AR-10MM upper is built on a non-reciprocating side charging billet upper receiver with LRBHO (Last Round Bolt Hold Open). Expect an approximate 8-week lead time for shipping, as these are manufactured on a monthly schedule.

Key Features:

• Barrel: 8.5" 10MM match-grade AR barrel, 4150 CrMoV steel with black nitride finish, chambered in 10MM. Twist rate: 1:16, 5/8-24 muzzle brake threads. Barrel finished off with A2 flash hider.

• Upper Receiver: Pistol caliber side charging upper receiver machined from 6061 billet aluminum, matte black hard-coat anodized per Mil 8625 Type 3 Class 2. Compatible with Glock mag AR-9/40/45 components and most aftermarket parts. Features an adjustable tension slide lock on the charging handle, with a rear dust cover trap door.

• Gas System: Blowback.

• Handguard: Lightweight free-floating 7" slim M-LOK rail made from aircraft-quality aluminum with black hardcoat anodized finish.

• BCG: AR-40 .40 S&W/10mm ramped BCG (Glock & Colt compatible), made of 8620 steel with mag phosphate finish. Ramped carrier works with standard AR hammers and is precision-milled for use with Glock-style lower receivers. M-16 cut, full-auto rated (compliant with BATFE regulations).

• Charging Handle: AR-15 charging handle included.

Complete Upper Assembly: The upper comes fully assembled and tested, ready for use. Manufactured in the USA by Moriarti Armaments.

Note: Images may not be an exact representation of the product. Slight variations in mlok design may occur based on parts availability. Approximate lead time: 8 weeks.