Yankee Hill Machine Q.D.S. Flip-Up Sight Set - M4 Style

Manufactured by Yankee Hill Machine
SKU: YHM-5040
MPN: YHM5040
Manufactured by Yankee Hill Machine
26 Reviews

In Stock

Standard orders will ship out 1 business day 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.

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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 M4 style front sight protective ears. 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.

  • M4 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%. 
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BrandYankee Hill Machine
FinishHardcoat Anodized
Fixed FoldingFolding
Manufacturer.Yankee Hill Machine

Ratings & Reviews

26 reviews

  • 4 stars
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  • 1 star
  • 0 reviews

Great Value, service and shipping


As a FFL holder I am able to get 'deals' on just about anything firearm related. That being said, Primary Arms offered these YHM back up sights at a better price than I could get them.Shipped to me in a few days with excellent email update status of my order makes shopping with PA a pleasure.Sights look awesome as well. Very well made and durable.

Awesome Sights


Best sights I have ever bought. postitive lock close with a strong spring. well machined. and the finish is very nice not cheap anodized(like the ones that look like these on amazon).

built well but dont fit my rifle


built well, but do not fit DPMS, the front sight will not fold down, hits the hand guard. have to leave front up all the time.

Fast Service


Excellent customer service! Quick shipping. Will do more business in the future. Good prices also.

Excellent Product


Getting product as advertised. Primary Arm is by far one of the best companies i have had the pleasure ordering with. Very Fast shipping and i will definetly be doing business again.

Yankee Hill Q.D.S. Flip-Up Sight Set


Great price & quick delivery

YHM's sights are great.


I am very pleased with the quality and the values of the YHM sights. They also came quickly and the customer service at Primary Arms was excellent.

YHM QDS sights!!!


I bought these on sale for $79 and all I can say is WOW!!! Great Deal Primary Arms!!! The sights are very easy to install and even easier to dial in. When folded flat they lie nice and low and I dod not forsee a problem with adding a red dot. They are as accurate as you can shoot. All in all a great set of iron sights and will be buying another set when its time for the next build no matter what the cost....although the $79 was nice. Keep up the good work Primary Arms!!!

AR-15 flip sights


I co-sight my AR-15 optics with the iron sights for 100 yards and needed another set of flip sights for a recently acquired optional complete short barrel upper. Primary Arms had the high quality model I wanted at an excellent price and delivered it two days faster than promised.

Great price quality shipping


I don't know if it was a mistake, but I ended up getting this incredibly discounted. Primary arms gets an A+ for honoring advertised price and they have incredibly fast shipping. I recommend this company for anything and will be back.