Jan 7, 2026 · Previous Page / 2 Next Page [ARCHIVED THREAD] - Is the M4 carbine a “retro” configuration now (Page 1 of 2) Home / General / General Discussion

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 …

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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 …

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 …

Sep 25, 2023 · I like all 3I carry the 14” Benelli M4 for work while the 1301 and A300 are for the house. All three have been solid after tons of training

Aug 5, 2021 · All of them seem to run Knights M4 RAS Rails with Ergo M4 Forward Rails at the FSP, KAC Rear sights, NT4 flash hiders, and PEQ-15. What varies and appears to be the most common …

Dec 15, 2019 · The Rem Chokes are considerably shorter than the Ben/Ber mobil chokes that the 18" barrel takes. I use Briley for shotgun work because they're local. I've had them work on several guns …

Dec 28, 2016 · M4 feed ramps will be up to the mfg. A military M4 barrel is similar to a 20" A2 barrel, with about 5.5" removed between the chamber area and the gas block/fsb, M4 feed ramps, and a …

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