Category Archives: Upper receivers

Rock River Arms 9mm Upper Review

Posted on June 13, 2011 by admin

The Rock River Arms 9 mm AR upper is available in A2 (carry handle and 800 meter backsight) and A4 (flat top) versions. Using 9mm ammunition in this AR upper will keep you shooting through the winter on indoor pistol … Continue reading →

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57 Center AR57 Upper Review

Posted on June 13, 2011 by admin

The 57 Center AR57 Upper is a blowback operated upper chambered for the very mild recoiling 5.7X28 mm FN ammunition. This unit works with a unique, low-profile 50 round magazine which can be purchased separately. The magazine sits on top … Continue reading →

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Adams Arms Gas Piston Upper Review

Posted on May 11, 2011 by admin

The Adams Arms Gas Piston Upper is Complete upper receiver assembly comes ready to install on mil-spec lower receiver. The advantages of AR gas piston operation are clean, positive cycling and a less violent operating cycle. As gas isn’t vented into the piston … Continue reading →

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Zel Custom Tactilite T-2 Ultralite 50 BMG AR Upper

Posted on April 15, 2011 by admin

  The Zel Custom Tactilite T-2 Ultralite 50 BMG AR upper converts any AR lower into a powerful, long range multi shot rifle capable of great accuracy. The 50 BMG upper reciever is machined from a single billet of 4140 chrome-moly steel hardened to Rc … Continue reading →

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Zel Custom Tactilite T-1 Ultralite .50 BMG AR Upper

Posted on April 15, 2011 by admin

The Zel Custom Tactilite T-1 Ultralite 50 BMG AR upper converts any AR lower into a powerful, long range single shot rifle capable of great accuracy. The 50 BMG upper reciever is machined from a single billet of 4140 chrome-moly steel hardened to Rc … Continue reading →

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