The Yankee Hill Machine Black Diamond Specter XL Carbine
The Yankee Hill Machine Black Diamond Specter XL complete upper receiver is made with a forged 7075-T6 aluminum upper with M4 feed ramps. Additionally this unit features a free float hand guard, forward assist, charging handle and complete bolt carrier assembly. The Yankee Hill Machine upper will connect itself to any mil-spec Ar-15 lower.Yankee Hill Machine AR-15 Complete Upper Receiver (Matte Black) Specifications and Features:
- Yankee Hill Machine YHM78207
- AR-15 Complete Upper Receiver
- 5.56 NATO (Accepts .223 Remington)
- 16" Barrel
- 1:7" Twist Rate
- Forged 7075-T6 Flat Top Upper Receiver with M4 Feed Ramps (T-Marked)
- Forward Assist
- 4140 Steel Barrel Heat Treated to RC 25-32
- Diamond Fluted To Improve Rigidity and Aid in Barrel Cooling
- Threaded
- YHM Phantom 5C2 Flash Hider/Comp
- YHM Rifle Length Diamond Hand Guard (YHM-9635-DX)
- YHM Forearm End Cap (YHM-9484-A)
- YHM Low Profile Gas Block (YHM-9384)
- YHM Forearm Mounted Flip Front Sight (YHM-9627)
- YHM Flip Rear Sight (YHM-9680)
- Total Weight 4.8lbs
- Matte Black
- Any Mil-Spec AR-15 Lower Receiver
- Charging Handle
- Bolt Carrier Assembly
This product is not returnable. Contact the manufacturer for warranty and assistance.
5 Ratings
Love this Upper
Feels great and fires great. Light upper and continues to run without issue. Pros: Lightweight Cons: Iron sights leave something to be desired
June 19, 2018
As soon as I saw this upp
As soon as I saw this upper I knew I had to have it. I didn't want some generic looking AR that everyone else has. Put it on a Spikes Tactical lower. Fits great, looks awesome. It's nice because I have long arms so it shoulders nice, and I can put my hand anywhere down the forend. Already put a couple thousand rounds through it... shoots perfect right out the box. If you're looking to buy this upper you already know YHM makes great stuff and you're not looking for some cheap Mil-Spec upper. Great buy
September 4, 2014
Holy tack driver Batman!
Holy tack driver Batman! Dead on out of the box. Great mill work. Great setup for the money. Sure you can buy more expensive uppers, but why. Unless you use this extensively you don't need anything else. Did the break in with 55gr and was getting two inch groups at 50 yards(more me than the rifle, maybe). After 60 rounds for break in I switched ammo. Ran 30 rounds of 62gr and was getting one inch groups. As the forums will tell you 55gr is about the lowest you should go with 1 in 7. If I can remember I will post again when I get optics and push out to 100 and 200 yards.
May 19, 2014
I bought this upper to ma
I bought this upper to mate to a CMMG lower. Put it all together and went to range. Dead on out of box at 30 yards and just had to do a minor adjustment at 100 with the rear sight. Right out of the box. I'm very happy with this upper. Well worth the money!!
March 15, 2014
I bought this to mount on
I bought this to mount on an Anderson Manufacturing lower, the fit and finish is excellent, and it cycles beautifully. YHM has always maintained a great reputation, and after buying this upper, I now know why! You won't be disappointed!
December 19, 2013
is the Bolt Carrier in this upper a M16 (full)?
Answer:
Yankee Hill Machine does not publish this information, I recommend contacting them directly.
I have a Colt LE901 .308 and want to know if this upper will change out so I can fire .223 ammo. Thanks.
Answer:
You would need the Colt LE901 Magazine Adapter Block Conversion Kit to put an AR-15 upper on your lower.
Will this work with a palmetto pa-15 multi lower
Answer:
Yes, it will.
Is this a heavy barrel contour?
Answer:
It is not.
Will this work on an ati omni lower
Answer:
Yes it will.
Is this Massachusetts compliant
Answer:
We cannot offer legal advice.
does this upper include the bolt carrier group?
Answer:
Yes, it is complete and ready to use. The bolt carrier group and charging handle are included.