Yankee Hill Machine Q.D.S. Flip-Up Sight Set - HK Style

Manufactured by Yankee Hill Machine
SKU: YHM-5040H
Manufactured by Yankee Hill Machine
52 Reviews

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Yankee Hill Machine Quick Deploy Sight System are spring loaded iron sights that deploy at the push of a button. This YHM sight set for AR-15 or AR-10 platforms attaches directly to picatinny rail systems and this model features an HK style front sight hood. Each back up iron sight is machined from aluminum and hardcoat anodized black. The rear sight is adjustable for windage while the front sight is elevation adjustable.

  • HK style front sight
  • Machined from aluminum
  • Hardcoat anodized black
  • Push button activated
  • Spring loaded
  • Low profile when folded

Yankee Hill Machine stands by their products and meticulously inspect each product before they ship it out. Their quality assurance program adheres to strict military standards and use the most modern equipment. Not only are is the inspection equipment state of the art, but they manufacture their own tools to make sure that each part is machined precisely the way it needs to be. They have a highly skilled and diverse workforce that is committed to insure your satisfaction 100%. 
See More


BrandYankee Hill Machine
FinishHardcoat Anodized
Fixed FoldingFolding
Manufacturer.Yankee Hill Machine

Ratings & Reviews

52 reviews


Well made product...


A great product and Primary Arms delivers super fast once again.

Yankee Hill Machine Q.D.S. Flip-Up Sight Set, Fron


Arrived Quickly , as described at a great price! What more can one ask for!

Good Not the Best


At first sight I thought they looked a little cheap. Just holding them in your hand and trying to press the button was extremely hard, so I oiled the button and installed them on one of my AR's and it seemed to be easier but still stiff. To be honest they have a lot of play for and aft in my opinion. Compared to my Troy's these are wider, I like my troy's much better and quality wise I think my troy's look and operate smoother. However it was a great deal I will make good use of them.

YHM Iron sights


Bought these sights on sale and they were in my mailbox two days later. Great deal and great shipping.

great choice


Couldn't see spending the money for troy sights; there just open sights. All iI have is magpul mbus to compare, these are better/more durable.

Fit, Finish, machining, operation all great


Fit, Finish, machining, operation all great. Slight wobble in the rear post which i was able to easily correct. Make sure to lube up the pushpin or you'll have a hard time getting them to deploy



Good quality sights - fair price.

Super satisfied


Got to my house quicker than promised by the post office. Quicker than ups and half the price. Easy installation and easy to use. I would revoked this buy to anyone from beginner to long time builder.

YHM 5040 Hooded sight set


Great Deal!, I like these, especially the hooded front sight.

Good service


Great people to deal with, they sent me a flyer a few days after purchase with the sights $20 cheaper, which kinda took the wind out of my sails but they were still the cheapest around and shipped very quickly. so all in all im happy