Rearden DPB Features The Rearden DPB Muzzle Brake is machined from 17-4 PH H900 steel and finished with a black nitride coating that reaches 67 HRC surface hardness giving it the durability to withstand repeated suppressor mounting and dismounting. Designed with a square shoulder the DPB is built to work with Atlas Atlas XL and Plan B style suppressor mounting systems including larger wrench flats on the rear for easier installation and removal. At a 1/2x28 thread pitch and .280 bore size this brake fits a range of intermediate caliber rifles commonly run with quick-detach suppressor mounts. Rearden includes shims with the DPB helping shooters achieve proper alignment and timing during installation. Proper installation matters with this type of muzzle device and Rearden provides clear guidance on torquing the brake to the barrel and using an alignment rod to ensure the entire system seats correctly. The nitride finish helps create a tighter seal between the brake and barrel shoulder though Rearden stresses that the muzzle device must still be properly torqued and Rocksetted for reliable performance. Weighing only 2.56 ounces the DPB adds minimal weight to the front of a rifle while providing the mounting interface for a suppressor system. For shooters running an Atlas Atlas XL or Plan B compatible suppressor setup the Rearden DPB Muzzle Brake is a precision-made mounting solution. Rearden DPB Specifications Manufacturer: Rearden Model: DPB Compatible Hosts: Atlas Atlas XL Plan B Color: Black Material: 17-4 PH Steel Finish: Nitride Length: 2.30 Thread Pattern: 1/2x28 Bore Size: .280 Weight: 2.56 oz Available At: GrabAGun