MRP-L M-LOK SPECWAR 5.56MM ASSEMBLED UPPER RECEIVER – MRP-L M-LOK SPECWAR 5.56MM 11.5” ASSEMBLED UPPER RECEIVER

Specifications

  • Cartridge: 5.56 x 45
  • Model: Mars-L
  • Style: Assembled
  • Color: Black
  • Length: 11.5''
  • Make/Model: LMT, Mars-L
  • Finish: Anodized
  • Make: LMT

MRP-L M-LOK SPECWAR 5.56MM ASSEMBLED UPPER RECEIVER

Built with operational performance in mind, the new LMT Spec War upper was designed in partnership with some of Americas most specialized warfighters. This upper was built to utilize the new 12.5″ MRP barrel as well as other 12″ or greater barrels. We removed the built in forward QD swivels and extended the length over the traditional CQB length to improve ergonomics and accessory real estate. What this does is give the user a better fighting edge and increased lethality.

Among keeping the classic barrel swap capability, the Spec War focuses on the need to maintain a rigid platform for mounted laser aiming and illumination devices, crucial for night operations. Additionally, this upper receiver features MLOK pattern rail mounting platform and a continuous picatinny top rail. For those who require use of a QD sling, a single point is available in the aft portion of the receiver.

The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver. The only tool needed is a standard T-30 Torx bit to tighten the bolts. This receiver requires the patented LMT monolithic barrel assembly which has a low profile gas block with straight gas tube.

SPECIFICATIONS:

  • Caliber: .204 Ru, .300 BLK, 5.56×45, 6.8 SPC
  • MRP Platform: MRP-L (Light)
Description

Original price was: $940.50.Current price is: $695.93.

MRP-L M-LOK SPECWAR 5.56MM ASSEMBLED UPPER RECEIVER

Built with operational performance in mind, the new LMT Spec War upper was designed in partnership with some of Americas most specialized warfighters. This upper was built to utilize the new 12.5″ MRP barrel as well as other 12″ or greater barrels. We removed the built in forward QD swivels and extended the length over the traditional CQB length to improve ergonomics and accessory real estate. What this does is give the user a better fighting edge and increased lethality.

Among keeping the classic barrel swap capability, the Spec War focuses on the need to maintain a rigid platform for mounted laser aiming and illumination devices, crucial for night operations. Additionally, this upper receiver features MLOK pattern rail mounting platform and a continuous picatinny top rail. For those who require use of a QD sling, a single point is available in the aft portion of the receiver.

The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver. The only tool needed is a standard T-30 Torx bit to tighten the bolts. This receiver requires the patented LMT monolithic barrel assembly which has a low profile gas block with straight gas tube.

SPECIFICATIONS:

  • Caliber: .204 Ru, .300 BLK, 5.56×45, 6.8 SPC
  • MRP Platform: MRP-L (Light)

Out of stock

SKU 430111520 Category

Description

MRP-L M-LOK SPECWAR 5.56MM ASSEMBLED UPPER RECEIVER

Built with operational performance in mind, the new LMT Spec War upper was designed in partnership with some of Americas most specialized warfighters. This upper was built to utilize the new 12.5″ MRP barrel as well as other 12″ or greater barrels. We removed the built in forward QD swivels and extended the length over the traditional CQB length to improve ergonomics and accessory real estate. What this does is give the user a better fighting edge and increased lethality.

Among keeping the classic barrel swap capability, the Spec War focuses on the need to maintain a rigid platform for mounted laser aiming and illumination devices, crucial for night operations. Additionally, this upper receiver features MLOK pattern rail mounting platform and a continuous picatinny top rail. For those who require use of a QD sling, a single point is available in the aft portion of the receiver.

The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of aerospace grade aluminum. The barrel is held in place with a proprietary locking system that utilizes two locking bolts accessible from the right side of the receiver. The only tool needed is a standard T-30 Torx bit to tighten the bolts. This receiver requires the patented LMT monolithic barrel assembly which has a low profile gas block with straight gas tube.

SPECIFICATIONS:

  • Caliber: .204 Ru, .300 BLK, 5.56×45, 6.8 SPC
  • MRP Platform: MRP-L (Light)

Additional information

Weight 1.35 lbs
Model

Mars-L

Style

Assembled

Color

Black

Length

11.5''

Cartridge

AKK_5.56 x 45

Make/Model

LMT, Mars-L

Finish

Anodized

Make

LMT

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.