A.R.M.S. AR-15 Flip-Up Front Sight with Integral Gas Block 2.2" Steel Black

Integral gas block and folding front sight replicates the strength and appearance of the classic factory AR-15/M16 front sight tower, yet folds neatly out of the way when it's not needed. Weight-saving, all-in-one design; no need to purchase a railed gas block and a separate rail-mount folding sight. Deploys and locks securely open with the flick of a finger-as fast as any flip-up combat sight. To fold, press straight down on the top of the diagonal rear support to release the lock while pulling back on the sight tower. Standard, A2-type sight post is the same height as factory post, so it works with any factory height rear sight. Easy to install; dual clamping rings fit stand Mfg: A.R.M.S. SPECS: Steel and aluminum, matte black finish. Fits barrels that are .750" O.D. at the gas port.