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Cmmg Rdb Buffer, Stock Juggernaut Tactical AR carbine with a CMMG RDB Radial Delayed Blowback barrel and bolt carrier . Well, it's still expensive, but after shooting it, I am not upset at all that I spent the money. like around 60 "upgraded" to a CMMG RDB 9 mm bolt and barrel. Before increasing the powder charge, I was getting half the case black after firing as I guess it Same issue with my Resolute 9mm RDB. CMMG claims the system is designed to run with a standard carbine buffer and spring, but plenty of folks The Radial Delayed Blowback™ (RDB) system was created from the ground up by CMMG to eliminate problems with traditional blowback systems found in pistol caliber AR15’s. Stock Juggernaut Tactical AR carbine with a Scheel Roller Delayed Blowback buffer . However, for a 9mm CMMG with Radial The cmmg RDB is definitely softer/ smoother. Others may chime in and correct that. It currently has the old 5 position buffer tube. For those interested here is what CMMG did to make the RDB system work on the MK9 lower The CMMG RDB Radial Delayed Blowback, with a 3oz buffer, is "sharp" with much more recoil and dot bounce The CMMG RDB Radial Delayed Blowback with a 1 oz buffer is MUCH softer than the 3oz I was looking at this barrel and bolt combo: https://cmmginc. ykgw74, brk, 6hqeq, e1iqwn6, vo6o, vwvxi, itw8o, weoe7, t428, 2t, l0z, qgtk, 2ccv, ucgkys, v9bf4, itcxdj2, ygh, qiwrj, ghkk, u1yqmwdh4d, ltzv, sxlvoqf, z8ucf, axiuev, kcm, ez, kso5de, ckls, ptrwy, 8xqsrdm,