r/ar15build is a subreddit with 8k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses build, ar15, parts, upper, and barrel.
A community around the passion for building and tinkering with the AR15 platform
Popular Themes in r/ar15build
#1
Solution Requests
: "Looking for suggestions for full upper"
5 posts
#2
Advice Requests
: "Any idea why this is happening? It’s the Strike Industries hand guard moving not the Hogue grip. Thanks."
5 posts
Popular Topics in r/ar15build
#1
Build
: "Working on a new Build."
65 posts
#2
Ar15
: "1st Build - 10.5 Inch .300BLK Pistol"
47 posts
#3
Parts
: "1st build"
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
: "Finding a red dot"
11 posts
#10
Ar
9 posts
Member Growth in r/ar15build
Yearly
+452 members(6.2%)
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About
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Last updated: October 31, 2026