The TBAC SR is Thunder Beast's high performance hard use full auto rated 30 caliber suppressor. It is constructed from high quality titanium making it a very lightweight option when compared to most other suppressors. This suppressor offers unmatched accuracy and retention. If you have used ultra suppressors, the Dominus meters right in between an Ultra 7 and 9. The 6.95-inch DOMINUS-SR meters at 137 dB (milspec left/right) and 126 dB at shooters ear on a 20-inch .308. These numbers are from a PULSE system. The SR quick detach mount offers a rugged retention system that will always stay locked in place and lockup the same after being taken off and put back on. There is no noticeable shift after taking the suppressor off. This suppressor is compatible with only the SR brake in either .30 cal or .338. The SR mount uses a novel paw and cam-path system to ensure that "full lock up" can happen in either of the two adjacent detent slots for any given final shouldering position of the suppressor on the conical brake shoulder. This categorically avoids the "off by one" problem that many "clicky" mounts have. The SR mount has the exact same accuracy, repeatability, and return-to-zero characteristics that all TBAC precision suppressors are known for.