Tag Archives: ar57 a1 pdw carbine

TangoDown ARC Polymer 30-round Magazine for Tactical AR-15 Carbines and SBRs

By David Crane defrev at gmail dot com December 17, 2008 DefenseReview has been using TangoDown "Rail Grip" polymer rail covers (a.k.a. rail panels), "BattleGrip" vertical foregrips and "Rifle Grip" pistol grips (for rifles) on tactical AR-15 carbines and subcarbine/SBRs (Short Barreled Rifles) for quite awhile, now. These products have always performed well, and we’ve been satisfied with them. TangoDown’s …

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AR Five Seven (AR-57): 50-Shot 5.7x28mm AR-15 Carbine

By David Crane defrev at gmail dot com August 11, 2008 An outfit called 57 Center is making an interesting patent-pending 5.7x28mm upper receiver for AR-15/M16 lower receivers called the AR Five Seven (AR-57) that utilizes 50-round FN P90/PS90 PDW magazines. The magazines are top-loaded and horizontal-mounted, just like on the P90/PS90. It would appear that that an emptied-out standard …

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