LMT Defense MRP-L Quad 9.25″ Upper Receiver Features
This monolithic upper receiver is constructed from a single piece of forged aerospace aluminum, providing enhanced strength, improved rigidity, and increased accuracy over traditional two-piece designs. The proprietary barrel locking system, secured by two side-accessible locking bolts, ensures rapid and repeatable barrel changes with a simple T-30 Torx bit.
The quad-rail design at the 3, 6, and 9 o’clock positions offers ample space for mounting accessories, while five QD sling swivel attachment points provide versatile sling options. This receiver is compatible with LMT’s monolithic barrel assemblies, utilizing a low-profile gas block with a straight gas tube.
LMT Defense MRP-L Quad 9.25″ Upper Receiver Specifications
- Compatibility: 5.56 NATO / 300 Blackout
- Material: Aerospace-Grade Forged Aluminum
- Handguard: Quad Rail at 3, 6, and 9 o’clock Positions
- Barrel Compatibility: 10.5″ to 18″ (Barrel Not Included)
- Barrel Mounting System: Proprietary Locking Bolts (T-30 Torx Required)
- Sling Mounts: Five QD Sling Swivel Attachment Points
- Gas System: Compatible with LMT Monolithic Barrel Assemblies (Low-Profile Gas Block & Straight Gas Tube)
| Barrel Length | N/A |
|---|---|
| Caliber | 5.56 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | LMT Defense |
| Manufacturer Part Number | L7S1A |
| Model | MRP-L Quad Assembled Upper Receiver |
| Type | Uppers |
| UPC | 815415010403 |
Frequently Asked Questions About This Product
Why buy LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: RIFLES, Uppers.
What tags or features does this product have?
Key features and tags for this product include: RIFLES, Uppers.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout
All firearms, including the LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/.300 Blackout is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
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