This upper has been specified and put together specifically to run our 556 TAKE DOWN suppressor with minimal blowback and to run reliably in a dedicated suppressed fashion with mil-spec ammunition. This upper was designed to meter at about 140 dB at the shooter’s ear and at the mil-spec muzzle position.
Please refer to the 556 TAKE DOWN product page for its specifications.
It is available as a permanently pin the 556 TAKE DOWN to the barrel to prevent the requirement of a registered SBR lower. With the front-serviceability of the 556 TAKE DOWN, this combination can still easily be maintained and repaired.
The DSU is available with the Aero M-LOK float tube.
An H4 buffer is recommended for compatibility with all ammo types.