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This hand guard has been designed to achieve maximum versatility, high rigidity and structural integrity, and positive barrel retention. The JP Hand Guard System allows you to mount rails in any position for complete flexibility without wasted weight and features you don’t need.

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The Diablo Upper is Primary Weapons Systemsï¾’ answer to the 7ï¾” AR-15/M-16 series upper. Rather than simply bolting on an existing product and calling it revolutionary, PWS stepped back and designed a system from the ground up to work specifically with the extreme pressures of the 7ï¾” barrels. We started with the barrel and after careful research decided on a 7ï¾” (not 7.5ï¾”) 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. 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.

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Licensed by Strike Industries, Madbull introduces the new line of Key-Mod Polymer Rail Section accessories for the Key-Mod handguard rail product line. For those who want the lightest possible set up, we have a set of two piece standard polymer 5 section rails. Each polymer rail weights 0.4 oz. and can be place anywhere on the KeyMod rail. Our rail sections are made for Madbull KeyMod products but will work with most other KeyMod systems. Learn More

The MK1 series, developed by Primary Weapons Systems, is a significant product improvement for the M4/M16-type carbines and rifles. Utilizing our proven long stroke piston system, the MK1 series greatly reduces fouling in the action of the weapon making it as reliable as the AK47 that it was designed after. 

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The Strike Industries Mega Fins hand guard rail is an ultra light weight handguard rail with a plethora of features. Our Mega Fins rail is named after the "fins" in the interior of the rails that aid in dissipating heat from the barrel. The Mega Fins features a full 7 sided (heptagonal) Keymod system which allows for maximum modularity in rail placement. We’ve taken every step to insure our hand guard is ergonomic and supremely light weight without sacrificing durability or quality. The Mega Fins come is a variety of lengths: 7” 9” 11” and 13”

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