[MaybeStopCalling]

Just a question for you guys: What kind of accuracy are you guys getting out of your open bolt M4s?

I'm routinely able to group rounds in the 10 MOA area at both 30 ft (1 inch grouping) and 60 ft (2-2.5 inch grouping). I'd like to know if this is on the low end or the better end of expected performance out of these guns, before I start throwing funds at accuracy upgrades. Groupings were done at bench rest, firing five rounds off a full magazine at a target.

Reference Information

Hop-Up: Modify Rubber
FPS: 342 FPS on 0.2 BBs, 20 *C
Barrel: 363 mm WE Open Bolt Barrel, lightly polished with Mother's Aluminum Polish
Components: Plastic Nozzle/Bolt, Steel Bolt Carrier, RS Carbine Buffer
Magazine & Ammunition: Green Gas WE Generation 2, .28 King Arms Platinum
Trigger: Polished CWI Steel Trigger Group