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Matrix 120% Hammer Spring For WA M4 Gas Blowback Airsoft Rifle Series

2 Customer Reviews

by ennong y. on 08/31/2015
"not even stronger than my king arms M4 CQB-R GBB stock hammer spring, unless they sent me a defect product.
by Pedro N. on 01/19/2015
"Got one, didn't work...
Is stronger but no long enough for my G&P woc