The 15 lb (6.8 kg) recoil spring is dedicated to heavy ammunition and / or gunpowder load.
Recoil Spring For BUL 1911/2011 SAS, Resistance : 15lb (6,8 Kg)
The 15 lb (6.8 kg) recoil spring is dedicated to heavy ammunition and/or powder charge.
Compatible with Bul Armory 1911 and 2011 pistols.
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