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Lugerdoc · 07-19-2015, 11:01 AM

GT. You will probably want to do some investigating of some modified recoil springs, since the heavier the barrel, a lighter recoil spring will be required for full recoil of the toggle assy. in the case of the GPC 16+ inch "carbine" barrel, a one piece recoil spring with about 14 turns will allow full recoil, but doesn't have enough strength to return the toggle and load the next round. Perhaps a dual spring system, as in the Radom, Glocks, etc may be the answer. TH

07-19-2015, 11:01 AM	#18
Lugerdoc Patron LugerForum Patron Join Date: Jun 2002 Location: POB 398 St.Charles,MO. 63302 Posts: 5,089 Thanks: 6 Thanked 737 Times in 484 Posts	GT. You will probably want to do some investigating of some modified recoil springs, since the heavier the barrel, a lighter recoil spring will be required for full recoil of the toggle assy. in the case of the GPC 16+ inch "carbine" barrel, a one piece recoil spring with about 14 turns will allow full recoil, but doesn't have enough strength to return the toggle and load the next round. Perhaps a dual spring system, as in the Radom, Glocks, etc may be the answer. TH __________________ Tom Heller POB 398 ST.Charles, MO. 63302 Tel 636-447-3006 lugerdoc@charter.net

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