Mar 15, 2005 · The Z4-GTC (Gas Trap Carbine) utilizes the POF-USA P416 w/C.R.O.S ™ (Corrosion Resistant Operating System) gas-piston upper receiver group, which does away …

Jan 14, 2005 · DSA, Inc. is offering a new short-stroke gas piston-driven AR-15/M16-based 5.56x45mm carbine called the Z4-GTC (Gas Trap Carbine). David Fortier has written an …

Aug 20, 2007 · DSArms offers the Z4 GTC with the Corrosion Resistant Operating System (C.R.O.S.) The rifle features a 16-inch M-4 profile fluted 1:9 twist chrome lined heavy barrel, …

DSA ZM4 Mid-Length AR15 Carbine - Lifetime Warranty , Please click on the image for more details.

Mar 15, 2005 · DefenseReview is eager to see a three-way match-up between a full-auto/select-fire version of the DSA Z4-GTC (Gas Trap Carbine) the Arms Tech Compak-16 subcarbine …

DSA Z4 Gas Trap Carbine (GTC) :: Gun Values by Gun Digest. Introduced in 2005. Fitted with 16" chrome lined barrel, M4 profile fluted and Vortec flash hider. Collapsible 6-position stock, …

Mar 27, 2006 · It is a POF upper on a DSA lower. Comes with a lifetime warranty on the upper and lower according to DSA. POF also told me they would warranty the upper if need be.

This D.S. Arms (DSA) Model ZM4 is a right hand semi-auto rifle in 5.56 NATO Cal. It has a FN 20 inch HS MP barrel with a muzzle break and a 1:7 twist. An adjustable post front sight with …

Sep 14, 2006 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.

Mar 22, 2011 · I'm thinking about getting a dsa from aim surplus . Any experience with this rifle would be appreciated .