Over 300,000 customers - we say thank you!

40,000+ products for hunting and shooting sports

Discover the LMT MRP-L QUAD 5.56MM Upper Receiver, featuring a monolithic design, easy barrel swapping, and multiple QD sling attachment points for versatility.
-10 %

LMT DEFENSE MRP-L QUAD 5.56/300 BLK 13.25" ASSEMBLED UPPER RECEIVER

815415010564 430111516

Filters:

Variations
Filters:
Variations:

Variations:

-10 %
Cartridge: 300 AAC Blackout, 5.56 x 45 Color: Black Finish: Anodized Length: 13.25'' Make: LMT Model: Mars-L Style: Assembled Product no.: 430111516
In stock
969.9 GBP 3 £969.90 * £1,079.90
-10 %
Cartridge: 300 AAC Blackout, 5.56 x 45 Color: Black Finish: Anodized Length: 9.25'' Make: LMT Model: Mars-L Style: Assembled Product no.: 430111515
Not available
899.9 GBP 0 £899.90 * £999.90
899.9 969.9 2 GBP
-10 %
MSRP £1,079.90
969.9 GBP £969.90

Prices inclusive of duty & VAT.

Product no.: 430111516

Mfr. No.: L7RA1A

815415010564 MRP-L QUAD 5.56MM ASSEMBLED UPPER RECEIVER The patented LMT Monolithic Rail Platform, MRP™ upper receiver. The receiver and handguard are made from a single piece of forged aerospace 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. The MRP-L QUAD 9.25 is the carbine length receiver designed for 10.5″ barrels up to 18″ barrels with quad rail at the 3, 6, and 9 o’clock positions. This receiver sports 5 QD sling swivel attachment locations. Barrel not included. The MRP-L QUAD 13.25 is the rifle length receiver designed for 14.5″ barrels up to 20″ barrels with quad rail at the 3, 6, and 9 o’clock positions. This receiver sports 5 QD sling swivel attachment locations. Barrel not included. SPECIFICATIONS: Weight: 1.424 lbs – 1.742 lbs Dimensions: 16.25 in – 20.25 in Caliber: .204 Ru, .300 BLK, 5.56×45, 6.8 SPC MRP Platform: MRP-L (Light)
In stock 3 pcs. in the USA warehouse

Delivery time approx. 7-14 days.

No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
  • Patented Monolithic Rail Platform
  • Single-piece Aerospace Aluminum Design
  • Versatile Barrel Length Compatibility
899.9 969.9 2 GBP
Description Specification Customers reviews Accessories

LMT DEFENSE MRP-L QUAD 5.56/300 BLK 13.25" ASSEMBLED UPPER RECEIVER

-10 %
MSRP £1,079.90
969.9 GBP £969.90

Prices inclusive of duty & VAT.

Is a 'Call to order' product.

Description:

Introducing the MRP-L QUAD 5.56MM ASSEMBLED UPPER RECEIVER – Precision Meets Performance

The MRP-L QUAD 5.56MM ASSEMBLED UPPER RECEIVER from LMT DEFENSE is engineered for shooters who demand the best in quality and functionality. This innovative upper receiver is built on the patented LMT Monolithic Rail Platform (MRP™), offering a seamless integration of receiver and handguard made from a single piece of forged aerospace aluminum.

Key Features:

  • Proprietary Locking System: The barrel is secured with a unique locking system featuring two bolts accessible from the right side of the receiver. A standard T-30 Torx bit is the only tool required for tightening.
  • Compatibility: Designed for use with the patented LMT monolithic barrel assembly, featuring a low profile gas block and straight gas tube.
  • Length Options: The MRP-L QUAD 9.25 is tailored for carbine length barrels (10.5″ to 18″) while the MRP-L QUAD 13.25 is suited for rifle length barrels (14.5″ to 20″).
  • Attachment Points: Each receiver includes 5 QD sling swivel attachment locations for enhanced versatility.
  • Weight: Ranges from 1.424 lbs to 1.742 lbs, making it lightweight yet robust.
  • Dimensions: Measures between 16.25 inches to 20.25 inches.
  • Caliber Compatibility: Supports .204 Ru, .300 BLK, 5.56×45, and 6.8 SPC.

Note: Barrel not included.

Specifications:

  • Weight: 1.424 lbs – 1.742 lbs
  • Dimensions: 16.25 in – 20.25 in
  • Caliber: .204 Ru, .300 BLK, 5.56×45, 6.8 SPC
  • MRP Platform: MRP-L (Light)

Upgrade your firearm with the MRP-L QUAD 5.56MM ASSEMBLED UPPER RECEIVER, where cutting-edge technology meets unmatched reliability.



Restrictions

  • Is a 'Call to order' product.

Attributes

  • Cartridge:
    300 AAC Blackout
    ,
    5.56 x 45
  • Colour:
    Black
  • Finish:
    Anodized
  • Length:
    13.25''
  • Model:
    Mars-L
  • Style:
    Assembled
  • Weapon type:
    LMT
  • Delivery weight: 0.803kg
  • Shipping height: 178mm
  • Shipping width: 330mm
  • Shipping length: 635mm
  • UPC: 815415010564

Item details

Made in USA
US export classification: 0A501.e

Customers reviews

Customer ratings (0)

0 / 5

Variations:

-10 %
Cartridge: 300 AAC Blackout, 5.56 x 45 Color: Black Finish: Anodized Length: 13.25'' Make: LMT Model: Mars-L Style: Assembled Product no.: 430111516
In stock
969.9 GBP 3 £969.90 * £1,079.90
-10 %
Cartridge: 300 AAC Blackout, 5.56 x 45 Color: Black Finish: Anodized Length: 9.25'' Make: LMT Model: Mars-L Style: Assembled Product no.: 430111515
Not available
899.9 GBP 0 £899.90 * £999.90

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Back to top