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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"
– gunlover
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"
– J Kelly
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."
– Jeffrey
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."
– John D
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."
– Tony
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..."
– Ispowz
5.0 5
"Well everyone already said it.....its great. Also easy to install, it was my fist gas block swap. two thumbs up"
– Brian
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"
– Dustin