About to be sent off for ATF ruling. 7.5 inch barrel, 5.6 lbs and 100% unmolested ar15 parts. Didn't bother to round the edges or add any "style" to it since I may never see it again. This one uses the same type of recoil system as the SABRE, if its approved I'll do a second submission with a different sear catch / recoil system once I get the design flushed out.