AR/M4

Beyond 5.56/.223 6.5/6.8/.300/.308 and more! AR General Discussion Dedicated to Will Larson–Industry Professional, Veteran, & Friend to Many Sponsored by BCM AR Technical Discussion Sponsored by SOLGW<!–/* * SHOT Show Threads Vintage ARs A subforum dedicated to the historical development of the AR platform AR Pistols & Pistol Caliber ARs Custom Build Forum Show off pictures and specifications of your latest project

Topic	Replies	Views	Activity
About the AR/M4 category AR/M4	0	117	January 31, 2024
Arms Unlimited Colt carbine AR/M4	8	121	January 30, 2026
GEISSELE GFR® MOD1, 6MM ARC RECCE or something else? AR Technical Discussion	1	35	January 28, 2026
What to build AR/M4	14	158	January 16, 2026
Is shooting large frame AR’s “different” from standard 5.56 rifles? Beyond 5.56/.223	22	441	January 10, 2026
HK's new MR556A4 (video) AR General Discussion	30	667	January 7, 2026
Let's Talk About "Accuracy" AR Technical Discussion	77	87206	January 4, 2026
On loose carrier key screws AR General Discussion	179	48162	January 4, 2026
Noveske 14.5" Light Carbine Upper: Converting from Rifle Stock to Carbine Adj. Stock - New Buffer? AR General Discussion	9	181	December 26, 2025
SOLGW Awarded USSOCOM Contract for MK1 Rifle AR/M4	9	241	December 18, 2025
6mm ARC vs 6.8 SPCII - Medium size game Beyond 5.56/.223	19	398	December 17, 2025
AR Picture Thread (Part 2) AR General Discussion	85	1830	December 10, 2025
A1/A2 Rifle Length Buffer Design Questions AR/M4	3	127	December 9, 2025
CAR-15 (or XM177E1) Build Custom Build Forum	19	331	December 5, 2025
Ring Eroded into the Buffer AR/M4	28	261	December 2, 2025
Magpul UCS (Universal Carbine Stock) To AR15 5.56 Lower Receiver: How do I do this? AR General Discussion	2	181	November 5, 2025
Linear comp AR/M4	10	114	November 4, 2025
Canted barrel in my BCM upper AR General Discussion	19	684	November 2, 2025
BRT 14.5 Hammer Forged Barrel Review AR/M4	4	125	October 23, 2025
Noveske: New Disruptive Deep Flute - DDF Barrels AR General Discussion	18	441	October 23, 2025
Army picks SIG to produce Next Generation Squad Weapon AR General Discussion	448	32128	September 20, 2025
Help removing gas tube AR/M4	7	128	September 18, 2025
BCM 18" MK12 SPR Mod 3X-Bravo (DD14) Custom Build Forum	9	8044	May 22, 2010
My new BCM 18" build!, new pics 3-14-10 Custom Build Forum	20	6483	May 15, 2010
Southpaw: Ejection pattern? Too litle gas? AR Technical Discussion	2	57	August 30, 2025
Transition from rifle to pistol AR General Discussion	34	287	August 23, 2025
Talk me out of getting a KAC KS3 Upper - Noveske guy here - do I need rounded bolt carrier lugs? AR General Discussion	6	257	August 10, 2025
WWII Jeep-inspired 14.7” Lightweight Ambi Carbine Custom Build Forum	10	1258	July 30, 2025
Storage options for AR’s and other guns AR General Discussion	5	240	July 27, 2025
Index of action spring tests AR Technical Discussion	4	310	July 25, 2025