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

I like that these have a push-button quick flip option. Just push the button and "FLIP!" they pop right up. Buttons are a bit stiff though. May lighten up over time.

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.

I initially passed on these because of the price, but then I remembered YHM doesn't make anything half way so I got em. Overbuilt, tight, etc. Yup they are that good. Thanks PA!

I initially passed on these because of the price, but then I remembered YHM doesn't make anything half way so I got em. Overbuilt, tight, etc. Yup they are that good. Thanks PA!

The sights are of a great quality.I prefer metal over what most flip up sights are made of. A nice very low profile when down, which works well with the pvs14+ night vision and IR lazer. And the big plus it's not those knock off products coming from china. Good ole made in America.Will recommend this product to friends.

Real like these flip ups and purchased them when they had the special on them for $130. Great buy!

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.

Primary Arms is my first choice above all other weapons parts suppliers, they always ship immediately and I have never been disappointed by them.

Service was fast and delivered on time. Will be installing the sights this weekend and punching holes in paper.

ive wanted these sights for a while but thought they were to expencive but the veterins day sale was great I couldn't pass thease up this finishes my 1st Ar build. sights are well made and look and function like I expected them too shipping also was fast will buy from PA again

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

Not my first set. I came back to these because of my great experience with a previous set I have been using. First rate, no question.

Not my first set. I came back to these because of my great experience with a previous set I have been using. First rate, no question.

Thank you primaryarms for putting these on $ale for a price I could not pass up. These sights are metal and built to last as expected with YHM products. very satisfied with the looks and feel of these sights.

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.

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!!!

Great price & quick delivery

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).

Their quality is immediately apparent, very low when down, every bit as nice as the Troy sights I've had in the past. Provides lower third co-witness with my Aimpoint Pro.

Yankee Hill Machine flip up sites have been my first choice since my first AR build. They are compact and very well constructed. They lay very flat on the rail and do not obstruct my optics or mount. I have two other sets of flip up sites from two of the other very popular manufacturers. One set is mostly composite and are very good as well but sit higher on the rail when collapsed. The other set are high quality and made of steel but are about $30.00 more and I find no difference in shooting accuracy.

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.

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.

Fast shipping and love the up to date stock system thanks ...ill be back

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.

Sights were easy to install and work great. Shipped and recieved quickly.