Vltor MUR Upper Receiver with Bolt Assist and Shell Deflector - Black
Upper Receiver is completely assembled and machined for M4 feedramps. The MUR was developed to fill the give the customer a Mil-Spec correct upper receiver, with a thicker wall thickness making the MUR upper receiver a more rigid platform. A more rigid upper receiver will increase accuracy, reliability and extend the life of interfacing components, such as the bolt carrier group and barrel assembly. The main benefit of the MUR is its dimensionally correct. Unfortunately, with the current supply effort, a number of AR suppliers are rushing through production, bypassing critical dimensions which will either make or break the reliability and accuracy of the weapon. With the existence of the MUR, you’ll receive the best and highest quality upper receiver available on the market today. All MURs feature a MilStd-1913 scope mounting rail and come equipped with an Ejection-Port, Dust Cover Door.
Ratings & Reviews
Vltor MUR Upper
by Russell Holmes
Again Primary Arms was one of NLT a couple places to have this upper in stock. Price is competitive.
Expect the best from Vltor, perfect milling, butter smooth inside and a perfect fit to my lower with no wobble. Couldn't be happier.
VLTOR MUR 1A
by rick nielsen
Flawless looks untouched from factory used these in 5 builds the barrel mounting hole is slightly tapered the last 1/4 in or so for nice no play fit the pin slot is also a nice tight fit, the best I have used, fast shipping
Great for the price
Great low cost option
Vltor mur 1a
by Lyno Jay Sonza
I highly recommend this product. Very high quality, sturdy and the cuts are very precise. The finish is awesome. Fitment is very good. Looks great too!
Sexy and efficient
by Indiana Jones
I wasn't sure if this would be worth the extra money before I bought it and I'm glad I took the risk. Nice tight fit with the bcg adding to accuracy. Not too tight though. Added a bit of dirt to the inside to test reliability and it continued chugging away. Not one flaw in the finish. Will be buying again on my next build. I think P.A. set a land speed record (again) with shipping
by A. Rogers
IMO the MUR is the best forged receiver. Fits snug and tight on ever lower I've put it on. I got one mounted with a BCM keymod rail and another with a Noveske NSR.
by Matthew Santarelli
One of the best uppers on the market, fits PERFECT on my spikes lower.
Vltor MUR Upper
by Ryan Marsolais
Perfect. Fast shipping.
VLTOR MUR & Primary Arms, both great!!
by Mike M
Primary Arms has EXTREMELY FAST processing for as swamped as all gun/accessory shops are. Ordered on the Dec. 24th, received on the 29th! Big +1 Primary Arms.The VLTOR MUR is a great piece of kit. I'm not saying you can't get a good upper receiver for less, but you're not going to get a better, stronger receiver even if you pay hundreds more. I can tell you, this is a functional receiver with unique looks that also add extra strength.
The best upper reciever you can get! I know its not billet but its nice and thick and looks different from other uppers. Quick shipping as always from primary arms.
by Ryan Long
This is is very well built and with no machine marks. When I build another one I will use this upper again. Very tight tolerances, you can tell this is a mil spec product
Vltor MUR upper review.
This is the nicest AR lower I've ever used. It's also the most expensive. It might not make sense to some when you can get a mil-spec upper for 50$. But this upper is for those of us with experience building AR's and want something better/different. The Vltor MUR is thicker, heavier and cooler looking then your average mil-spec upper.
by S Welch
Vltor upper receiver is no doubt a quality product. Will be used on a SBR being built and wanted to complete the build with proven products. This receiver should fit the bill, and will hold up to heavy use for years to come. In reference to the folks at Primary Arms, shipping was quick. This is the second order placed and items arrived in less than three days. Will continue to order products without hesitation.
Excellent Quality Upper
If you're looking for a unique upper accompanied by precision machining then look no further. Formed a perfect snugged fit with lower and matched the finish as well. No problems with any of my custom/milspec part. This upper is well worth the price you won't be disappointed.
This is the best fitting upper I've ever used in a build. Always snug and well worth the extra money. I'm sure there are better uppers out there but this Vltor upper can't be beat for function along with the price.
vltor mur upper
by Darren -
I ordered this vltor mur upper for a second build of mine. I was wondering if this product was the vulcan line from vltor which involves blemishes because of how incredible the price was set topped off by a sweet discount by Primary Arms, in this case it was not. This vltor mur upper came well packaged and whole. On top of that, the package delivered one day earlier which was a surprise on my end. Primary Arms is incredible with customer service and fast deliveries and I will order more in the future!