Price history at T.REX ARMS
Price at T.REX ARMS unchanged at $858.95 since Oct 9, 2026. Last checked Nov 8, 2026.
Product Description
US-made 5.56mm upper receiver group with 16" and 14.5" options, M4 feed ramp, USGI 1/7 twist, and chrome bore. Includes bolt carrier group and M-LOK mount.
Price history at T.REX ARMS
Price at T.REX ARMS unchanged at $858.95 since Oct 9, 2026. Last checked Nov 8, 2026.