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Those look like AAC flash hiders. I'm not sure where to get the exact one you're looking for, but you might try contacting them to start. |
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You are looking for the old A1-18t (18 tooth) mount, which fits the old M4-2000 (now called the M4-1000), as the new M4-2000 uses a 51-tooth ratchet. I do not believe AAC makes them anymore since they started their Blackout line (which is much more effective at flash suppressing).
I don't know any places that would readily have them in stock, but you could post a wanted ad in the EE, or just shop around gun shows or watch the EE and Classifieds for folks replacing the older hider. |
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