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AR-15 Front Flip Sight Tower Yankee Hill Machine With Bayonet Lug and Sling Swivel Easy Install

Yankee Hill Machine
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This gas block front sight features a standard style front sight guard and all steel construction for superior strength in demanding conditions. The flip sight is easily concealed with the push of a button. It flips up and locks in the deployed position. Accepts all standard AR-15 sight posts and hardware (included). With this setup, you get the convenience of a flip front sight with the same weight as a standard AR-15 sight tower. 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 using a 7/64" Allen wrench. Includes bayonet lug and sling swivel. Made in the U.S.A. with a warranty from Yankee Hill Machine.

Gas block has a .750" diameter.

For warranty information, please contact:
Yankee Hill Machine Co, Inc.
20 Ladd Avenue, Suite 1
Florence, MA 01062
Total number of Reviews: 10

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5.0 5
"I dont usually write reviews but this gas block/front sight tower from yankee hill is a good buy for sure"
5.0 5
"For the money, this is the way to go if your looking to take your A2 Gas block off and put a flip up on. I dont ever write reviews but I could not be happier. This is a .750 gas block"
5.0 5
"Fit and finish was great!! Nice sturdy lock on the sight, used on SW MP15A"
5.0 5
"I have been wanting to replace the front sight post on my old ban era bushmaster heavy barrel. This barrel is 14.5\" with a welded on muzzle brake(total length is 16.5\"). Sliding on a new post is not possible. This was the perfect solution to installing a flip-up front sight, and installing a bayonet lug. FYI, bayonets will fit on 14.5\" and 20\" barrels only."
5.0 5
"Like all of the other reviews have stated, this product is great. Works just as advertised. Has a lock for the up position and for the down position, it just used friction to hold it in place. I clamped it to the barrel with the supplied screws and it hasn't moved since. Good quality machine work on metal as well. It is for a .750\" diameter barrel as someone above stated."
5.0 5
"I love this gas block. It works amazingly well, easy to see sight, easy to flip up, easy to flip down, locks in place great and does it perfect. I am going to put this on all my AR's"
5.0 5
"This sight works great with my M&P15. Along with the rear sight that goes with this, I was able to get it zeroed in with 12 shots. Has standard elevation adjustments."
5.0 5
"I have used 6 of these now, of various models from this company. I haven't had a single problem with any of them,fit,finish and function are outstanding!a little blue locktite and you have peace of mind that the screws will not back out, just to be sure..."
5.0 5
"Well everyone already said it.....its great. Also easy to install, it was my fist gas block swap. two thumbs up"
4.0 5
"Very satisfied with this gas block/sight but the sling ring and bayonet mount had to be reversed to fit the YHM-5000 hand guard, which was recommended it be used with.Would probably be more aggravated if I had planned on using the bayonet lug (which is now hidden under the hand guard). 4/5"