This guide details the process of modifying AR-10 platform lower receivers, specifically LMT MARS-H and KAC SR-25, to accommodate an AS Designs Arcfire FRT. The host, demonstrating high mechanical expertise, explains that the internal shelf of these high-shelf lowers requires milling to provide adequate clearance for the FRT lever, a crucial step for reliable function. The video contrasts this with the easier integration of FRTs in 5.56 platforms like the LMT MARS-L.
You've reached the end! 1 videos loaded.
Gun Laws by State
Read firearms regulations for all 50 states + D.C.
Find Gun Dealers
Search licensed FFL dealers near you.
