Welcome to the AR15 Builders Forum -> Read this first [Site Feedback] (3)

The AR15 Builders Forum is a place where anyone who is interested in the AR platform can come to learn and share information about the most versatile weapons system on the planet. This site was born because our Faceboo…

AERO Precision Assembled Upper Receiver $69.95 [Gun Deals] (3)
B5 Systems - Enhanced SOPMOD & Bravo Overview [ARBuildJunkie] (1)
Ar10 Caliber Options [Uncategorized] (5)
10.5 Pistol Buffer Length [Help/How to] (6)
AERO Precision Lower Parts Kits $49.95 [Gun Deals] (1)
The 03/15/19 T-Shirt Winners Are [Uncategorized] (6)
Over 400 5 Star Customer Reviews [Product Reviews & Recommendations] (2)
New here and wanted to say hey [Build Showcase] (5)
AR-15 Lower Parts Kit Minus Fire Control And Grip [Gun Deals] (2)
Forward Controls Design - Simple Function Over Form [ARBuildJunkie] (1)
Brownells - XBRN177E2® Carbine 5.56MM [Gun Deals] (2)
The 3/08/19 T-Shirt Winners Are [Uncategorized] (16)
"Intermediate" Gas Tube Length [Help/How to] (7)
Surefire M952V-TN for trade*** or sell*** [Buy Sell Trade] (1)
Hello from new member! [Build Showcase] (5)
After 100 rounds will start short stroking, gas system is fine,new bolt carrier ,only piece not changed is buffer system.tried different magazines still happens.cleaned and fires great [Help/How to] (4)
Receiver/barrel extension problems [Help/How to] (4)
"5.56 is Dead." [Uncategorized] (9)
Build a 224 Valkyrie AR or Wait it Out? [ARBuildJunkie] (7)
Geissele Super Modular Rails - An Overview [ARBuildJunkie] (1)
20" .224 Valkyrie From APOC Armory $599.95 [Gun Deals] (3)
Bushmaster 450 Builds "lets see them" [Build Showcase] (1)
AR 10 Questions [Uncategorized] (2)
Is FB relevant anymore? [Uncategorized] (12)
Daniel Shaw on ARs & Leaving Your Comfort Zone [ARBuildJunkie] (1)
Ar15 and Variant Build Pic's ( 2 3 4 5 6 7 8 ) [Uncategorized] (157)
PCC 9mm Fox Trot Mikes lower - doubling issue [Uncategorized] (3)
APOC Armory Lower Parts Kits As Low As $39.95 With Coupon Code:(10OFFLPK) [Gun Deals] (2)
Builds for The Foundation for Exceptional Warriors [Build Showcase] (4)