he Moriarti AR-15 M16 Hybrid BCG with nitride finish is designed for shooters demanding maximum strength and reliable performance across multiple AR calibers. Compatible with 6.8 SPC, .224 Valkyrie, .22 Nosler, and .400 Legend, this full-auto M16-style bolt carrier group offers exceptional durability and smooth operation.
Constructed with an M16 full-auto style carrier coated in a hard nitride finish for superior wear resistance and corrosion protection, this BCG delivers long service life with reduced maintenance. The 9310 steel bolt is MPI tested for safety and reliability, ensuring your AR build performs under all conditions.
Compatible Calibers:
6.8 SPC
.224 Valkyrie
.22 Nosler
.400 Legend
Carrier:
M16 full-auto style
8620 steel construction
Durable nitride finish for corrosion resistance and low friction
Bolt:
Made from 9310 steel
Phosphate-coated
MPI tested for structural integrity
Gas Key:
Chrome-lined and properly staked
Secured with Grade 8 fasteners
Includes:
Chrome-plated firing pin
Firing pin retaining pin
Cam pin
Fully assembled and drop-in ready
Compatible with AR-15 upper receivers chambered in the listed calibers. Designed to fit mil-spec lowers and uppers. Functions reliably in both semi-automatic and full-auto capable setups (where legally permitted).
Upgrade your build with the Moriarti AR-15 400 Legend Upper Assembly
Tags: moriarti, ar-15, m16, bcg, hybrid, nitride, 6.8, spc, .224, valk, nosler, 400, legend cut