Cason76 Posted December 4, 2019 Report Share Posted December 4, 2019 I have a stock DPMS 308, works fine, never had any issues for over 6 years. Recently I thought it would be fun to replace the stock 16 inch barrel with a DTT Customs "Break Point" LR-308 Featuring Aero Precision M5 Upper 20" Ultra-Match .308 WIN Stainless 1-10T Heavy Barrel 19" M-Lok Handguard, and a Fail Zero BCG. Now it will only eject the spent round and slam home without loading a new round in the chamber. The BCG works just fine on the 16" barrel, and yes it was well lubed. Using Remmington core lock 180gn, and on occasion some reloads, 180 grain boat tails with 41 grain H11 powder. On the 20" barrel it will not lock to the rear with magazine inserted on last round, it will lock to the rear if done manually. The chamber is clean, the barrel is clean, the gas tube is clean and free of obstructions. Not sure what to do. Quote Link to comment Share on other sites More sharing options...
sketch Posted December 4, 2019 Report Share Posted December 4, 2019 give us link to what you bought..Dtt costoms? Quote Link to comment Share on other sites More sharing options...
392heminut Posted December 4, 2019 Report Share Posted December 4, 2019 Sounds like that barrel may have an undersized gas port! Not uncommon in this platform. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted December 5, 2019 Report Share Posted December 5, 2019 (edited) Sounds like DTT is Delta Team Tactical... made from 100% blem parts from other companies, is what they do. What's the "blem," though? Is it cosmetic, and doesn't affect function, or is the blem a functional issue? You never know. Edited December 5, 2019 by 98Z5V Quote Link to comment Share on other sites More sharing options...
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