Manufactured by DSA - All Parts U.S. Made! PLEASE NOTE: If you live in a magazine restricted state and the magazine that comes with the firearm would be illegal, we will remove the magazine from the order and ship the firearm to the dealer without the magazine.

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 with the AR-15/M16’s direct gas-impingement mechanism/operating system, and that system’s inherent problems.

DS Arms AR15 ZM4 16″ 5.56 Rifle is part of DSA’s WarZ Series, the pride and joy of the ZM-4AR product line. WarZ Series rifles feature premium match barrels machined from 416-R Stainless Steel or 4150-11595 Mil Spec Steel.

Back in Stock with a $50 price increse - Aim Surplus offers DSA Z4 MidLength 5.56/.223 Rifle. New DSA, Inc. Z4 Midlength 5.56/.223 AR Style Rifles. Features a Nitride Treated 16" 1:9 Fluted Chrome Moly barrel. Includes Hard Carry case and 30rd aluminum C-Products magazines. Proudly made in the US. FFL Required.

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

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 excellent and very informative article about it in January 31, 2005 issue of "Shotgun News".

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 (and longer-barreled Arms Tech Recon Rifle) and the HK416 carbine/subcarbine (formerly known as "HKM4" or "HK M4" carbine/subcarbine) in an adverse conditions/high-round-count test.

Fitted with 16" chrome lined barrel, M4 profile fluted and Vortec flash hider. Collapsible 6-position stock, with free float tactical rail. Gas trap system. Flattop upper receiver. Magazine capacity 10, 20 or 30 rounds. Introduced in 2005. Fitted with 16" chrome lined barrel, M4 profile fluted and Vortec flash hider.

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 protective sides and an adjustable aperture rear sight. The butt stock is adjustable/telescoping. The full pistol grip is a textured black polymer.

Dec 28, 2013 · DS Arms’ ZM4 Enhanced is well built and well equipped thanks to its accuracy upgrades and Magpul standard equipment. Shown with an Aimpoint Patrol Rifle Optic. The 16-inch barrel is capped with a CNC-machined Yankee Hill Machine Phantom muzzle brake installed on 1/2-28 threading. The crisp, single-stage trigger weighed in at 7.5 pounds.