Slr 6.5 ext hand guard and railed gas tube
It’s a nice tight fit once installed. My mini draco needed to have the railed gas tube be ovaled on the inside to allow the Bcg to go into battery. If not it will bind. Also if you have canted sights expect issues. also aks have a lot of slop in their moving components . The hand guard does not being it was Cnc machined to precise specs. Once I did the egg shaping on the 12 and 6 o clock positions in the gas tube and fully assembled it. it functioned flawlessly also the little bolts on the front plate are 3/32 to tighten them I still gave them 5 stars cus it wasn’t really their fault that I had these problems but they were fixed fairly easily.