Vltor MUR-1A Upper Receiver

The MUR is a rigid Mil-Spec flat-top upper made to fit all AR15/M16 M4 rifles and carbines. The MUR was developed to give the customer a Mil-Spec correct upper receiver with a thicker wall, making the MUR upper receiver a stronger platform. This more rigid upper receiver will increase accuracy and reliability, while extending the life of the interfacing components. The MUR-1A model comes equipped with a shell deflector and forward assist. The MUR-1S comes with a one-piece machined shell deflector only.

FEATURES:

• Aircraft-grade aluminum construction
• Machined from 7075 Forging
• Stress relieved, heat treated, aged twice and cryogenic treated
• Hard coat anodized, black per MIL-A-8625 TYPE III Class 2
• Precision machined and finished by hand
• Bore coated with dry film lube over the anodized surface
• Compatible with all Mil-Spec AR-15 parts and accessories
• Available with (MUR-1A) or without forward assist (MUR-1S)
• M4 feed ramps

PLEASE NOTE:
Due to our Lifetime Warranty, we advise that you not remove or attempt to remove your shell deflector. The shell deflector is pinned in place during factory assembly. Our Lifetime Warranty covers all of our products as long as they are not modified in any way (i.e. disassembly). We do offer a service in house that will maintain your Lifetime Warranty. Please contact us for more information.

Upper Receiver Parts Kit Includes:

• Complete Charging Handle - Milspec
• Complete Port Cover
• Complete Forward Assist

This is the kit to complete a Stripped Upper Receiver.

Feel free to ask all the question you have. We take the time to answer them all!

The Superlative Arms patented “Bleed Off”, direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks.  Results:

• The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. 
• Reduction of felt recoil.
• Patented adjustment detent is located outside of the block and therefore no contamination.
• The gas adjustment screw does not restrict the gas flow; therefore there is no erosion or seizing of the screw / no loss of detent due to carbon build up.  Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
• When using SBR’s and / or suppressors the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back. 

The Superlative Arms patented “Bleed Off”, direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks.  Results:

• The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. 
• Reduction of felt recoil.
• Patented adjustment detent is located outside of the block and therefore no contamination.
• The gas adjustment screw does not restrict the gas flow; therefore there is no erosion or seizing of the screw / no loss of detent due to carbon build up.  Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
• When using SBR’s and / or suppressors the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back. 

Side Charge Knob. Options  below

May not fit other brands of Receivers. Will Fit PF and Mega Arms.

Options:

Bushing

Bolt

Color

Feel free to ask all the question you have. We take the time to answer them all!

Side Charge Carrier. Options  below

May not fit other brands of Receivers. Will Fit PF and Mega Arms.

Options:

Nib Coated

Phalanx Coated

With Bolt, Cam, and Firing Pin

Feel free to ask all the question you have. We take the time to answer them all!

Samurai Bolt Carrier Group:

Samurai Firearms Carrier Group Machined in-house! Complete, .223/5.56mm AR-15 bolt and carrier assembly comes with all the parts, fully assembled, and ready to go. Precision-machined carrier and bolt. Mil-spec dimensions ensure proper fit and function in a wide variety of OEM and aftermarket upper receivers. All components, including bolt and gas key are finished in Black Nitride QPQ for extra strength and corrosion resistance. Interior and wear surface areas of the carrier are honed and polished and for additional durability and to aid in clockwork reliability.

Rear Profile is the same as Full Auto M16 Carriers.

Warranty: Lifetime Warranty Under normal Civilian Use. Professional LE and Military Use 10 Years or 10,000 Rounds Whichever comes first.

Feel free to ask all the question you have. We take the time to answer them all!

Samurai Firearms builds rifles, pistols, and parts utilizing the latest in computerized manufacturing. By keeping manufacturing in house, we can offer quality, American-made products at an affordable price, backed by a limited lifetime warranty.


NOTE: Forward assist and ejection port cover INCLUDED.

Features:

• 7075 aluminum
• M4 feed ramps
• MIL-SPEC Type III hardcoat anodized black

Feel free to ask all the question you have. We take the time to answer them all!

Samurai Firearms builds rifles, pistols, and parts utilizing the latest in computerized manufacturing. By keeping manufacturing in house, we can offer quality, American-made products at an affordable price, backed by a limited lifetime warranty.


NOTE: Ejection port cover and forward assist INCLUDED.

Features:

• 7075-T6 aluminum
• MIL-SPEC Type III hardcoat anodized black
• M4 Feed Ramp
• Carry Handle

Feel free to ask all the question you have. We take the time to answer them all!

Samurai Firearms builds rifles, pistols, and parts utilizing the latest in computerized manufacturing. By keeping manufacturing in house, we can offer quality, American-made products at an affordable price, backed by a limited lifetime warranty.


NOTE: Ejection port cover INCLUDED.

Features:

• 7075-T6 aluminum
• MIL-SPEC Type III hardcoat anodized black
• Carry Handle
• Rear Sight
• No forward assist, M-4 feed ramp, or shell deflector

Feel free to ask all the question you have. We take the time to answer them all!