gerritm Posted October 12, 2016 Share Posted October 12, 2016 My son just got a new STI DVC 9mm 3-gun pistol and I want to give him one of my 140mm STI mags that I use in 38 super. It is a stock mag with STI spring and follower with a Dawson base pad. Do I need to put a 140mm spacer in it & I was going to change the spring & follower to a 9mm Grams ? gerritm Link to comment Share on other sites More sharing options...
jcc7x7 Posted October 12, 2016 Share Posted October 12, 2016 It may run as is, try it If not 9mm guts need a spacer I like Hardy spacers and TTI guts and springs Link to comment Share on other sites More sharing options...
gerritm Posted October 13, 2016 Author Share Posted October 13, 2016 On 10/12/2016 at 6:40 AM, jcc7x7 said: It may run as is, try it If not 9mm guts need a spacer I like Hardy spacers and TTI guts and springs Ran about 300 rounds thru his new DVC 3-gun 9mm last night with the factory mags including using my 140mm 38 super mag with Grams spring and 38 follower and it had no problems. Good to know. By the way gun ran perfect out of the box with various factory loads and our soft 147gr Xtreme load. It is very accurate and really shoots these soft. gerritm Link to comment Share on other sites More sharing options...
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