YHM Flip up front sight Gas block with lower Rail.
YHM Flip up front sight Gas block with lower Rail.

AR 15 M 16 front Sights

Flip up front sights for the AR-15.

Flip Up front sights and gas blocks some sights fit on your gas block with a picatinny rail.
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GGG Flip Up front sight system.

GG&G New Bolt-On Tactical Flip up

GG&G New Bolt-On Tactical Modular Flip Up Front Sight Gas Block System

The New GG&G Bolt On Flip Up Front Sight Gas Block is a top of the line flip up front sight gas block system that is easy to install. The Flip Up Front Sight Gas Block is secured in place by a Tri-Point clamping mechanism guaranteeing consistent accuracy and trouble free operation. The sculpted finger groove design is not only ergonomic but allows for quick deployment. Manufactured from 4140 chrome moly billet steel with hardened wear points and finished by a mil spec manganese phosphate process, this unit is ready for rugged use. As a method of standardization the M16A2 square front post is used, which is fully adjustable for elevation zero. Protective ears are provided for the sight with additional gripping serrations to aid in raising and lowering the sight assembly. Additionally, there is a provision for the easy attachment of an optional MILSTD- 1913, ambidextrous 1½-inch long dovetail for mounting flashlights, LAMs and other small accessories onto the gas block base.

Yankee Hill Machine Front sight with gas block.

YHM Flip Up front Sight

YHM Front Flip Sight Tower With Bottom Rail.

This sight adds the convenience of a flip sight along with the versatility of a bottom picatinny rail. All steel construction for superior strength in demanding conditions. The flip sight is easily concealed with the push of a button and locks in the deployed position. This sight accepts all standard AR sight posts and hardware (included). The picatinny bottom rail is great for laser sights, flashlights, etc. This sight’s two-piece design allows it to be mounted on firearms with pinned and welded muzzle accessories. It mounts easily and securely with four cap screws.