LMT Defense MRP 5.56mm 14.5" Piston Barrel

All Lewis Machine & Tool barrels
Lewis Machine & Tool LMT Defense MRP 5.56mm 14.5" Piston Barrel - Barrel for AR-15 - view 1
Buy Now

Lewis Machine & Tool

Overview

The LMT Defense MRP 5.56mm 14.5" Piston Barrel is a barrel. Compare prices from multiple merchants and find the best deal.

Specifications

MPNR-L7NC1B
CoatingChrome Lined
Caliber5.56 NATO
Gas System LengthPistol
Barrel Length14.5
FinishNitride

Available Merchants(1)

Prices checked

Price Alert

Get an email if the price drops 10% or more.
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$716.85

Build history on GunPartPicker

Builders have added the LMT Defense MRP 5.56mm 14.5" Piston Barrel to their builds on GunPartPicker. Since April 2026, it ranks #340 of the 1,047 barrels builders have added.

It was hard to find in October 2026, in stock on only 8 of the 15 days we checked, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $716.85, with no real sale all month. Buying today, the lowest price is $716.85 at BattleHawk Armory, which matches the best price we saw in October.

Trending barrels →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Not sure which barrel to pick?

We ranked every barrel by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Barrel Length & Brand Report →

Builds Featuring This Part

See all builds →

Builds in the community that include the LMT Defense MRP 5.56mm 14.5" Piston Barrel

BuildPartsTotal
LMT 14.5" build build
LMT 14.5" build
17$4064.98

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!