jantonio54 Posted March 25, 2009 Share Posted March 25, 2009 I have an M1, 18" with pistol grip and full length extension, to which I wanted to add a 10 ounce light and mount (Surefire M3). I had the expected cycling problems, having broken the "Pick-one-of-the-three" rule (extension, light, or sidesaddle). I took the gun down to its smallest part, cleaned and lubed it well, and replaced the stock recoil spring with a Wolf 25% heavier spring. I've now fired nearly 100 rounds of Remington high-brass 00 without a single hiccup. This includes many shots with the gun not mounted to the shoulder, every magazine load to 7+1+1, and several shots just holding the gun with one hand, which is painful. I hope this info helps somebody out there. Remember that you have to really heat the nut on the recoil spring tube to get it off. I used a small torch. Otherwise, piece of cake. If anyone needs instructions, I can post links. Quote Link to comment Share on other sites More sharing options...
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