BCM Low Profile Gas Block for AR15" M16" M4" M4A1 for .625 barrels.
Low-Profile
Fits standardized KeyMod?äó interface mounting holes
Requires three KeyMod?äó attachment hole mounting points
All steel construction
Stock Notice: This item is NOT marked "In Stock". We will contact you within 12-24 hours by email if your order is on backorder with our distributor and will take longer than the 5-7 business days it takes us to ship out. Please do not order if you need this item shipped immediately.