r/ar15build
8k members
r/ar15build is a subreddit with 8k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses build, ar15, parts, upper, and barrel.
Popular Themes in r/ar15build
#1
Advice Requests
: "Any idea why this is happening? It’s the Strike Industries hand guard moving not the Hogue grip. Thanks."
9 posts
#2
Solution Requests
: "Looking for suggestions for full upper"
6 posts
Popular Topics in r/ar15build
#1
Build
: "Working on a new Build."
65 posts
#2
Ar15
: "Built my first Ar15 1 year ago. I've found it to be addictive and I love it."
47 posts
#3
Parts
: "Where can I cut costs on the remaining Parts I need?"
25 posts
#4
Upper
: "Looking for suggestions for full Upper"
23 posts
#5
Barrel
: "Sunday lower build. LRB Arms lower, Black Ops drop in trigger, Areo parts kit and Tippmann Arms T5 adjustable brace. Now waiting on my Barrel and upper to arrive soon."
15 posts
#6
Lower
: "Sunday Lower build. LRB Arms Lower, Black Ops drop in trigger, Areo parts kit and Tippmann Arms T5 adjustable brace. Now waiting on my barrel and upper to arrive soon."
14 posts
#7
Pistol
: "1st Build - 10.5 Inch .300BLK Pistol"
11 posts
#8
Handguard
: "New to AR builds/mods and have a question about this Handguard swap"
11 posts
#9
Optic
: "2 pistols. 2 Optics options. 510c and 3x prism"
11 posts
#10
Ar
9 posts
Member Growth in r/ar15build
Yearly
+600 members(8.4%)
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About
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Last updated: August 24, 2026