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SLR Synergy Sig MPX 9mm Mini Compensator, 13.5x1 LH Thread. For Sig MPX. No Timing needed. Works on stock or cut down barrels (crush washer included for shortened barrels). Will NOT work with the SIG MPX CARBINE (MPX-C-9-KM-T). 13.5x1 LH Threading. 1.4 oz. 1.84 overall length. 0.862 diameter. Adds 1.24 inches to barrel length. NOT for 14.5 inch barrels. ALL NFA Rules Apply.
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