Yankee Hill Machine Co

Simply Replace your spring retainer, spring and piston for this fixed thread mount. These adapters make it possible to use any caliber Sidewinder on Fixed barrel pistol caliber rifles and pistols...

These unique forearms feature diamond shaped heat vents, an extended top rail for gap-free installation, T marked rails to mark accessory locations, they accept their end caps, and utilize their...

These unique forearms feature diamond shaped heat vents, an extended top rail for gap-free installation, T marked rails to mark accessory locations, they accept their end caps, and utilize their...

YHM caliber marked dust covers for those who may end up changing the caliber of their top end/upper receiver. Assemblies Include the following: Caliber Marked Dust Cover, Rod and Retaining Clip,...

YHM caliber marked dust covers for those who may end up changing the caliber of their top end/upper receiver. Assemblies Include the following: Caliber Marked Dust Cover, Rod and Retaining Clip,...

YHM caliber marked dust covers for those who may end up changing the caliber of their top end/upper receiver. Assemblies Include the following: Caliber Marked Dust Cover, Rod and Retaining Clip,...

These takedown pins have over sized heads to make separating the upper and lower receiver faster and easier. Perfect for the shooting enthusiast with a variety of top ends and a single lower receiver...

AR-15 Same Plane Flip Front Sight- This durable, all steel sight mounts on the same plane as the rear sight to give you a backup iron sight. The sight folds out of the sight line with the push of a...

AR-15 Front Flip Sight Tower- These front sights feature either a round hooded front sight guard that allows for fast and accurate sighting or a standard style front sight guard. They sight base...

AR-15 Flip Rear Sight- Features of this sight include: a rugged but lightweight design with a steel base, a quick release thumb screw, and aluminum stem. Locks in the deployed position with ease and...

This durable, all steel sight mount set sits on the same plane to give you a front and back iron sight. The sights fold out of the sight line with the push of a button and flips and locks in the...

This riser allows you to use a same plane front sight on any YHM railed gas block. Perfect for use with their new Q.D.S.(R) same plane sight system.Features :Aluminum constructionAnodized finish