SLR Rifleworks Sentry 6 adjustable gas block, very lightly used, and in excellent condition. This is the 0.625" (for lightweight profile barrels), clamp-on version. Includes SLR black nitride finished midlength gas tube and roll pin. For those not familiar with the SLR adjustable, these have a detent system that makes settings repeatable, unlike your standard adjustable gas block. So you can tune the gas for different kinds of ammo and conditions, and just note how many clicks for each, and then dial back to that setting as appropriate. SPF
Some other items I have listed (can combine shipping if taking multiple items):
BCM 16" Midlength Lightweight Upper Receiver Group (5.56 NATO)
Troy 15" VTAC Alpha rail
Magpul STR stock, black, milspec, with the enhanced buttpad
Fortis QD sling RAP (rail attachment point)
ERGO 18 Slot Ladder Rail Covers
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