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Jul 27, 2025 · FYI, a M4 extension will work just fine in a receiver not cut for the extension. The only problem is when you run an extension with out M4 ramps in a receiver with M4 ramps cut into it. This …

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 …

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 …

Jun 8, 2023 · [ARCHIVED THREAD] - Best Benelli M4 Bolt release 6/8/2023 1:00:06 PM EST ... 6/8/2023 2:58:23 PM EST [#1]

Jul 30, 2023 · SPR and M4 collars are two different diameters, you need to make sure that the collar is the correct diameter for your barrel most importantly. That will have a drastic outcome on your …

Jun 25, 2006 · An Improved Battlesight Zero for the M4 Carbine and M16A2 Rifle 1. Current Army/Marine Corps battlesight zero and it's procedures are well described in TM9-1005-319-10, the …

Nov 24, 2018 · This thread will be dedicated to builds and discussions of the FBI clones and thanks to Geissele for listening to the masses and releasing the much coveted rail. Parts lists will be updated …

Jun 26, 2024 · Does anyone have a copy of blueprints for a lower, specifically the area of the rear of the receiver where the buffer tube screws into?

Feb 20, 2023 · If you were to choose between a current production Colt M4A1 Socom Carbine and an FN Military Collectors Series M4 which would you choose and why? Looking for something true to …