A video test to see if the LT-111 will return to zero after being detached and reattached from the weapon system several times.
Criterion
How to Install an Adjustable Gas Block on AR-10 or AR-15 (SLR Rifleworks)
Installation, Review, Pros, and Cons, of the SLR Rifleworks Adjustable Gas Block on an AR-10 (or AR-15).
Greatoutdoordinary 