Barfly Posted April 13, 2023 Report Share Posted April 13, 2023 Was directed to this site by a current member and look forward to learning more about the AR15's big brother. Thank you to Albroswift for the direction! I am building an Aero M5 based rifle. 15" Aero Atlas S-One rail 18" Faxxon big gunner profile barrel w/ VG6 Gamma brake/comp Aero BCG Strike Industries charging handle Magpul UBR Gen2 stock CMC single state drop in FCG Midwest Industries Combat Rifle Sight set Planning on Vortex Crossfire II 4-16x50 Optic with BDC reticle in QR mount and Magpul bipod. I have built a few AR15s, but this is the first time building a big bore AR. Looking forward to finding good information. Quote Link to comment Share on other sites More sharing options...
Lane Posted April 13, 2023 Report Share Posted April 13, 2023 Welcome from NY. Quote Link to comment Share on other sites More sharing options...
Armed Eye Doc Posted April 13, 2023 Report Share Posted April 13, 2023 Welcome to the forum. While the rifle is still apart, measure the gas port. It is a frequent issue with reliability in these rifles. Quote Link to comment Share on other sites More sharing options...
sagebrush Posted April 14, 2023 Report Share Posted April 14, 2023 welcome from oregon. lots of info here on this forum Quote Link to comment Share on other sites More sharing options...
98Z5V Posted April 14, 2023 Report Share Posted April 14, 2023 (edited) 8 hours ago, Barfly said: Was directed to this site by a current member and look forward to learning more about the AR15's big brother. Thank you to Albroswift for the direction! Welcome aboard, man - any friend of Albo's is a friend of ours. You mentioned UBR Gen 2 stock. Buy an AR15 Carbine H3 buffer for that thing. Very first. Not an H2, not an H1, the H3 AR15 Carbine buffer, 5.4oz. You'll need either the Armalite EA-1095 recoil spring or the Sprinco Red recoil spring for it. Those two items, combined with the stock you're running, will bullet-proof your recoil system. For good. After that, we move on. Welcome here. Edited April 14, 2023 by 98Z5V Quote Link to comment Share on other sites More sharing options...
shooterrex Posted April 14, 2023 Report Share Posted April 14, 2023 Welcome from KY Quote Link to comment Share on other sites More sharing options...
Albroswift Posted April 14, 2023 Report Share Posted April 14, 2023 Welcome! Quote Link to comment Share on other sites More sharing options...
Magwa Posted April 14, 2023 Report Share Posted April 14, 2023 Welcome from Idaho Quote Link to comment Share on other sites More sharing options...
unforgiven Posted April 14, 2023 Report Share Posted April 14, 2023 Welcome from Indiana brother Quote Link to comment Share on other sites More sharing options...
Rsquared Posted April 14, 2023 Report Share Posted April 14, 2023 Welcome from Maryland. Quote Link to comment Share on other sites More sharing options...
Cunuckgaucho Posted April 15, 2023 Report Share Posted April 15, 2023 Welcome from BC Quote Link to comment Share on other sites More sharing options...
Traveler Posted April 15, 2023 Report Share Posted April 15, 2023 Welcome from central-ish NC. Quote Link to comment Share on other sites More sharing options...
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