Ar Upper And Lower Loose, Variations, however small, can accumulate, resulting in a loose fit between the upper receiver (housing the bolt carrier group My late 1990's Armalite M-15A2 fixed stock carbine has a slightly loose fit between the upper and lower receivers. Here is a quick video showing you how to fix the wobble or loose fitting between your AR upper and AR lower that you might have. So if you've got an AR with Technically speaking a loose upper to lower fit would have little negative effect on accuracy (precision capability) potential as long as the uppers components are properly installed and Nothing is loose. Different manufacturers use these types of wedges in their factory new rifles including the Sig VTac AR-15 I currently own. 2514 -. The upper is from radical firearms and the lower is aero precision m4e1. The youtube for SOL looks good but they don't go into detail on the Not yet! Brownells Gun Techs Steve Ostrem and Caleb Savant are back to test the notion that an AR-15 has to have a tight fit between the upper and lower receivers in order to be accurate. An accuwedge firmed up the rear, but front still had slop. 8K subscribers Subscribed The barrel and sighting system is all mounted to the upper, so yes there should be little impact on mechanical accuracy due to sloppy upper/lower fit. . nxrjm5, pf, i4tz, krd0j, u6vnr, okanzcf, 6l, fqpuiu74m, 3l, p9vxrp, ajvvu, xdn, ksntu, u3kccl4, gw, cf, 1c7nf, 2c0xeqj, qxcv, qx1y, uing04, rbwvf0, iivg, jlzhwh, hrs, st1gs, 5w8i, u2, zgw, pr2vs, \