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Dynamo · January 2nd, 2014, 23:02

not a fan of the magic pin for GBBRs, they tend to crack the pin block. for a 7075 T6 forged upper, not really a problem.

January 2nd, 2014, 23:02	#5
Dynamo Harvester of Noobs' Sorrow Trader rating Join Date: Oct 2003 Location: T̆͒ͥ̓̿̅̈́̐͊̿͗̐̾̃͐ͧ&#8	not a fan of the magic pin for GBBRs, they tend to crack the pin block. for a 7075 T6 forged upper, not really a problem. __________________ Weapons Technician / Gunsmith Don't look at me, I don't know, lol ¯\(°_o)/¯.