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We started with the barrel and after careful research decided on a 7” (not 7.5”) stainless steel polygonal bore barrel with a 1:8 twist. A match bolt carrier assembly is housed inside of a MUR-1 (mil-spec) upper receiver with a billet machined charging handle. Low profile quad rails give the most possible room for accessories and XTM rail covers from Magpul are included for when the picatinny rails are not in use.
The Diablo upper utilizes a long stroke piston system for additional dwell time and smooth recoil. The system is rounded out with the new CQB comp from PWS - a comp designed for short barrels that compensates, suppresses flash and directs all the blast forward.
Polygonal Bore 1:8 Twist SS Barrel and Bolt
Billet Machined Charging Handle
VLTOR MUR-1 Upper Receiver
Y/M National Match Carrier
QPQ Coated Internals
Magpul XTM Rail Panels
PWS CQB Comp
Simply put, the Diablo upper was designed for those in harm's way. We built it with quality in mind, instead of price. If your operational requirements call for a small package with a lot of punch, choose the Diablo, by PWS.
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