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LMT Defense Guns for Sale

Founded: 1980

HQ: United States

Lewis Machine & Tool Company, Inc. (LMT Defense) is a United States manufacturer founded in 1980. The brand is known for AR-15 pattern rifles featuring monolithic upper receivers, notably its Monolithic Rail Platform and Modular Weapon System, with the latter fielded as the 7.62 mm L129A1 by the British Army.

Popular LMT Defense Models for Sale

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LMT Defense Auctions

4 active auctions ending soon

LMT Defense MRP-H QUAD 7.62mm NATO (7.62x51) 16" Rifle Upper AR10 AR-10

LMT Defense MRP-H QUAD 7.62mm NATO (7.62x51) 16" Rifle Upper AR10 AR-10

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 16.5" P&W MRP MONOLITHIC

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 16.5" P&W MRP MONOLITHIC

LMT Defense MARS-LS 556 AR-15 AR15

LMT Defense MARS-LS MRP-L Piston 5.56 NATO AR-15 AR15 12" Tan

LMT Defense MARS-LS MRP-L Piston 5.56 NATO AR-15 AR15 12" Tan

LMT Defense MARS-LS 556 AR 15 AR15 SHOVELNOSE

CUSTOM LMT Defense MARS-LS 5.56 NATO AR-15 AR15 11.5" SOLGW UPPER +2 MAGS

CUSTOM LMT Defense MARS-LS 5.56 NATO AR-15 AR15 11.5" SOLGW UPPER +2 MAGS

LMT Defense MARS-LS 556 AR 15 AR15 Rosco K9 Barrel

Recently Sold

SBR LMT Defense MARS-L LS; Specwar 5.56 NATO AR-15 AR15 +2 MAGS, ORIG BOX

Sold On 08/03/2026

SBR LMT Defense MARS-L LS; Specwar 5.56 NATO AR-15 AR15 +2 MAGS, ORIG BOX

LMT Defense MARS-L 556 AR-15 AR15 MRP UPPER

LMT Defense MARS-HS 7.62 NATO AR-10 AR10 16 Short-Stroke Piston

Sold On 07/17/2026

LMT Defense MARS-HS 7.62 NATO AR-10 AR10 16 Short-Stroke Piston

LMT Defense MARS-HS 762 AR-10 AR10

LMT Defense MARS-HS 7.62 NATO AR-10 AR10 13.5 MWS UPPER

Sold On 07/15/2026

LMT Defense MARS-HS 7.62 NATO AR-10 AR10 13.5 MWS UPPER

LMT Defense MARS-HS 762 AR-10 AR10 SB TAC BRACE

CUSTOM LMT Defense MARS-LS HK MR-Series Upper 5.56 NATO AR-15 AR15 11

Sold On 07/03/2026

CUSTOM LMT Defense MARS-LS HK MR-Series Upper 5.56 NATO AR-15 AR15 11

LMT MARS-LS AR-15 AR15 Brace, GEISSELE TRIGGER

LMT Defense MARS-L New Zealand Reference Rifle 5.56 NATO AR-15 +ORIG BOX

Sold On 05/29/2026

LMT Defense MARS-L New Zealand Reference Rifle 5.56 NATO AR-15 +ORIG BOX

LMT MARS-L 556 AR-15 AR15 MARSL MRP UPPER +2 MAGS

FACTORY SBR LMT Defense Defender 2000 5.56 NATO AR-15 AR15 14.5 +2 MAGS

Sold On 05/04/2026

FACTORY SBR LMT Defense Defender 2000 5.56 NATO AR-15 AR15 14.5 +2 MAGS

LMT Defense Defender 2000 AR-15 AR15 M203-Cut

LMT Defense LM308MWS LM8 Nefarious Arms AR-10 AR10 16" Monolithic Upper

Sold On 12/22/2025

LMT Defense LM308MWS LM8 Nefarious Arms AR-10 AR10 16" Monolithic Upper

LMT Defense LM308MWS 308 AR-10 AR10 Tactical

LMT Defense MARS-LS PWS MK116 1-M 223 Wylde AR15 AR-15 16" LMT PWS MARS-LS

Sold On 06/02/2025

LMT Defense MARS-LS PWS MK116 1-M 223 Wylde AR15 AR-15 16" LMT PWS MARS-LS

LMT Defense MARS-LS AR-15 PWS MK116 1M LMT MARS-LS

LMT Defense MARS 7.62 NATO LMT-Defense-MARS-7.62 AR-10 AR10 AR 20"

Sold On 05/30/2025

LMT Defense MARS 7.62 NATO LMT-Defense-MARS-7.62 AR-10 AR10 AR 20"

LMT Defense MARS 7.62 AR-10 LMT-MARS-7.62

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 AR 16" Custom Cerakote LMT-Defense

Sold On 05/16/2025

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 AR 16" Custom Cerakote LMT-Defense

LMT Defense MARS-LS AR-15 LMT Defense MARS-L

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 AR 12.5" LMT-MARS LS AR-15-AR15 AR

Sold On 05/02/2025

LMT Defense MARS-LS 5.56 NATO AR-15 AR15 AR 12.5" LMT-MARS LS AR-15-AR15 AR

LMT Defense MARS-LS AR-15 AR15 AR LMT-MARS LS

LMT Defense MARS-LS New Zealand Reference Rifle 5.56 NATO 16" MARS-LS 5MAGS

Sold On 04/18/2025

LMT Defense MARS-LS New Zealand Reference Rifle 5.56 NATO 16" MARS-LS 5MAGS

LMT Defense MARS-LS AR-15 AR15 AR LMT-MARS-LS

LMT Defense MARS-LS LWRC IC-A2 UPPER 5.56 NATO AR-15 LMT MARS-LS LWRC IC-A2

Sold On 04/04/2025

LMT Defense MARS-LS LWRC IC-A2 UPPER 5.56 NATO AR-15 LMT MARS-LS LWRC IC-A2

LMT Defense MARS-LS AR-15 LWRC IC-A2 AR15 AR LMT

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