SLR Rifleworks Non-Adjustable Micro Gas Block

SLR Rifleworks built its reputation on slim handguards, and the non-adjustable micro gas block is the part that fits under them when a standard-height block will not. The micro profile shaves height off the block so it clears the tightest free-float rails, and SLR offers it across .625, .750, .875, and .936 journals in both steel and titanium, with set-screw and clamp-on mounting options depending on the variant.

Titanium versions trade roughly a few tenths of an ounce and a higher price for heat tolerance and weight savings on a lightweight build; the steel GB6 keeps the cost down for shooters who just need the low profile. The clamp-on variants grip the journal without a dimple, which suits a no-modification install. This is the fixed micro block, not the SLR Sentry 7 adjustable; there is no gas metering here.

For a slim-handguard build, a lightweight rifle, or any host where block height is the constraint, the SLR micro is the specialist pick. Match journal size, material, and mounting style to the build before ordering, and pair with a restricting tube or heavier buffer on suppressed hosts.