I was welding for my ODA with a janky ass African bush sourced welding machine. No gloves, and the plastic handguard slipped exposing the metal of the handle. I went to move the work and sent 90 amps through my chest from hand to hand.
Loved mine when it was a 16" 1:8 twist. Stupid accurate.
If you go shorter to something like 7-9" of barrel, get a 1:5 twist. You run the risk of losing accuracy with subsonics if the bullets not making at least 1-2 full turns in the barrel before exit. At least iny experience. And most plated bullets are still fine at subsonic speed with a 1:5 twist (just confirm with their manufacturer).
I found 1/2 of a Knights Armament rail in my parts been. I'm not sure exactly the model. Idk if its usable towards a clone build or spare parts but make an offer.
Review The Package Description Below Package GGG-1730 Includes the GG&G MAD AR-15 Back Up Rear Iron Sight GGG-1006 and the GG&G Front Flip Up Sight For Forearms GGG-1033 Save 20%! Package Price $204 12 With Free Shipping Normal Retail $237 15 + $18 00 Shipping = $255 15