Our true mil-spec lower receivers are milled to the original M16 lower specifications without the auto-sear hole making these receivers legal for civilians to own. Our receivers feature a long trigger pocket and a low shelf so if you own a RDIAS, no milling is required SOT manufacturers can easily build a Post-Sample machinegun with our SPD. Bolt Carrier Converter. Tha bad news is Che days of inexpensive M-16 bolt carriers is a thing of the past. The good news is with a little work the AR-15 carrier can be modified to M-1B specifications. The only difference between the two carriers is that the AR-15 has had the area that trips th auto-seer machined off. 2021. 3. 27. &0183;&32;How do I know if I have a high shelf, low shelf, or m16 cut lower Diamondback DB15 and Radical RF15 specifically. 6 . Few minutes with a router and jig will fix that fast fwiw. 5. Reply. Share. Report Save Follow. level 2 &183; 1 yr. ago. He correct, both are high shelf. 5. Reply. Share. Report Save Follow. level 1 &183; 1 mo. Sep 03, 2020 &183; In case anyone is still looking for a lower, my buddy just called Tyler Firearms in Halethorpe and they have more MM m16 shelf lowers in stock, 129. Of the 4 i've handled they've all been great, with only one having a slightly tight mag-well when using gen 2 Pmags, just barely not dropping free. quot;>. m16 shelf jig. By December 22, 2021 random phone number generator to text. Griffin Armament MK1 AR-15 Stripped Lower Receiver - BLEM. DetailsNote This is a factory blemished model and may show cosmetic damage.The Griffin Armament MK1 AR-15 Stripped Lower Receiver is a solid beginning to any build. This lower will have minor blemishes which may include scratches, minor tool marks,. It is nice, and works just fine. The 112 barrel will stabilize anything up to 62 grains just fine, though it really prefers 55 grain bullets. OP, you aren&x27;t likely to be able to build one cheap from PSA parts. But there are lots of resources out there that can let you put together one in the 600-700 range. For that reason, most people look for a 5.56 NATO chamber in their AR-15. It allows tolerance for cheap surplus ammunition. However, .223 chambers are slightly more accurate due to the tighter specs. At least, that&x27;s what the lore says. Lucky Gunner did a great study in 2012 looking at the truth to all of this. Same reasoning many prefer the "low shelf" lowers over a "high shelf". This just takes it to the next level. Sep 3, 2020 11 Jed195 Active Member. Oct 19, 2011 . I don&x27;t think there&x27;s any jigs that accommodate the full M16 pocket. I&x27;d love to be wrong about that. Sep 3, 2020 16 Applehd Throbbing Member. MDS Supporter. Apr 26, 2012.