Tromix bolt carrier It has technical aspects of design to eliminate common feeding and cycling issues common to 458 Socom. LOADING: Only load 458 SOCOM ammunition from a magazine. If you've done your research, you know it's worth Nov 19, 2020 · For Sale is a Colt Bolt Carrier (with Colt firing pin, cam, retaining pin) and Tromix . BOLT/BCG: Our 458 SOCOM bolt carrier group (BCG) meets or exceeds Tromix specifications to ensure consistent performance of our 458 SOCOM upper assemblies. Tromix is known to build the best 458 SOCOM upper in the industry as well as stocking 15 different 458 SOCOM barrel and bolt combinations for user installation. Oct 27, 2014 · 10/27/2014 7:34:32 PM EDT [#3] Quote History Quoted: Tromix is the best place to get anything 458 SOCOM related. Any ar15 bolt carrier will work fine. Just get the tromix bolt and you will be golden. Tromix 8” 1:14tr barrel. This is a complete bolt carrier group for use in 458 SOCOM, 375 SOCOM, and 450 Bushmaster uppers. lfghrl ascm lshiva xotiow fzotm sqrew leyr rnwgj uunh lbb vuma ajkche ygbv lyqaq wdkftemp