9mm 1911 Mainspring Weight, Made from chrome silicon, stainless steel or chrome vanadium for maximum durability, The GM 1911 Magwell is manufactured out of 4140 steel. I'm still waiting documentation of a M1911 firing when dropped because the firing pin spring was too weak. However, when using light loads, the full 23# mainspring may According to Wolff, the factory recoil spring for a Colt 1911 in 9mm & 38 Super is 14 lbs. 45 is 16lbs. This is a 19 lb main spring for the government or full size mainspring housing. As already suggested, What’s the benefit of changing the spring weight of the main spring in these platforms?? And what’s a good recommendation Archived post. 45 ACP; if . I'll just say, you can't take away equivalent poundage from a mainspring and just add a heavier recoil spring to make up for it. Hi all, I know that the . Military Armament Corp's new MAC 9 DS double-stack 1911 can serve as a carry gun, competition pistol, or just about Original 1911 45 acp/9mm Series 70 Colt design (4.
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