May 1, 2008 · When zeroing the M4 at 25m, set the BDC to 6/3 +2. Make all your elevation changes on the front sight so the BDC will work. Center your group in the lower half of the center bullseye. At …

Jan 7, 2026 · Is the M4 carbine a “retro” configuration now (Page 1 of 2) Previous Page / 2 Next Page

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Jun 11, 2025 · A1 upper with or without M4 feed ramps - is it necessary? 1st retro build, and all my other upper receivers have had M4 feed ramps. My build is based of a Carbine. I have read mixed reviews …

Aug 8, 2024 · 3. Tippmann M4-22 4. JP Rifles JP-22R The Tipmann higher end is about a $750 rifle. A 10/22 race gun will run that much and more, so I think the 10/22s are just better known/easier …

Dec 10, 2023 · Just wondering what aftermarket triggers you guys have used?Doing some research, resulted in very limited info. Some guy on rimfire site reported that the SSA-E didn’t work because …

Jul 10, 2006 · They have M4 barrel extensions and have the same profile as an A2 barrel, just 4" shorter. Normal mid length handguards are 9", so a 9.5 rail won’t cover much of the has block.

Jul 7, 2011 · The M4 is a conventional forces weapon system, and is totally separate from the SOPMOD program and SOF modifications, though they were "inspired" by the SOPMOD program, almost …

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May 14, 2024 · Here's my M4A1 clone. EDIT: Actually just an M4 clone as I just learned. Always thought the flat top upper came in with the A1 upgrade but apparently that was an XM4 to M4 …