Davidson Defense Terminus 20-inch Rifle-Gas 1:8 6.5 Creedmoor AR-10 M-Lok Handguard Rifle Upper Build Kit

Terminus 20-inch 6.5 Creedmoor AR-10 Upper Build Kit

The Terminus is built around a 20-inch BC-10 barrel chambered in 6.5 Creedmoor, with a heavy, straight-fluted profile finished in Parkerized. It's paired with an LR-308 billet upper receiver machined to the DPMS low-profile pattern. It pairs a 17-inch low-profile AR-10/LR-308 M-LOK handguard with a GI-style birdcage flash hider at the muzzle, running on a rifle-length gas system. BCG and charging handle are not included, leaving the buyer to supply those components separately.

Key Features

• BC-10 20-inch 6.5 Creedmoor barrel, 1:8 twist, straight fluted, Parkerized finish
• Rifle-length gas system with low-profile AR-15/LR-308 gas block
• LR-308 billet upper receiver, DPMS low-profile pattern, no forward assist
• Low-profile AR-10/LR-308 17-inch M-LOK handguard with quad-rail front section
• GI-style birdcage flash hider
• BCG and charging handle are not included.

Barrel and Gas System

The BC-10 barrel runs 20 inches long, chambered in 6.5 Creedmoor and finished in Parkerized with a heavy profile and straight fluting to shed weight. It carries a 1:8 twist rate and a 5/8x24 muzzle thread. Gas cycles back to the action through a rifle-length system, running a stainless steel rifle-length gas tube and a low-profile AR-15/LR-308 gas block with a .936-inch bore.

Upper Receiver and Handguard

The upper receiver is a billet unit built to the DPMS low-profile pattern, finished in Type III hardcoat black anodizing and machined without a forward assist. The ejection port door ships assembled. Over the barrel sits a 17-inch low-profile AR-10/LR-308 handguard finished in black, featuring a quad-rail front section with ambidextrous front and rear QD points and a slanted front profile.

Muzzle Device

Capping the muzzle is a GI-style birdcage flash hider, listed as compatible with .308 Winchester, 7.62x39, and .300 Blackout. It threads onto the barrel's 5/8x24 pattern and is secured with the included 5/8-inch black crush washer.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.

BCG and charging handle are not included.