The Irregular Design Group Micro Flow Enhancer in 1/2×28 is the muzzle-side component of the Hesion Bow locking system for suppressor-dedicated rifles. Irregular Design Group prints the Micro FE in Inconel 718, and its hollow tines direct gas through toward the suppressor intake. It is meant to favor suppressed gas flow and flash management over unsuppressed muzzle flash reduction. This 1/2×28 version is rated for calibers up to 6mm and is one of the shortest muzzle devices in the lineup.

Key Specifications

• Thread pitch is 1/2×28, rated by the maker for calibers up to 6mm.
• The material is 3D-printed Inconel 718 made with laser powder bed fusion, which holds up to heat and round count.
• Overall length is 1.88 inches, a compact profile that adds little to the barrel.
• The mount is a 15-degree taper with a 1.125-8 left-hand American buttress thread, the Hesion Bow interface.
• It is listed for all six Hesychia suppressors: SIXK, SIXK-H, 556UK, 556UK-H, 7SIX2 and 7SIX2-H.

Frequently Asked Questions

Which Hesychia suppressors does the Micro FE fit? Irregular Design Group lists all six: the SIXK, SIXK-H, 556UK, 556UK-H, 7SIX2 and 7SIX2-H. On the direct SIXK, 556UK and 7SIX2 it is the interface the suppressor mounts to.

What calibers is the 1/2×28 version rated for? The maker rates the 1/2×28 Micro FE for calibers up to 6mm and recommends confirming the caliber from the barrel markings rather than from thread pitch.

How is it different from the Hybrid Flash Hider? The Micro FE is suppressor-dedicated and gives up unsuppressed flash reduction, while the Hybrid Flash Hider is intended for rifles used both suppressed and unsuppressed.

Buy the Irregular Design Group Micro Flow Enhancer, 1/2×28

The Micro FE is the short option for a rifle that stays suppressed. Its compact length gives up little barrel, and it fits the broadest list of Hesychia suppressors in the range. Browse our other AR muzzle devices and order from our Lubbock, Texas gun shop for fast direct shipping.