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LMT Defense MARS for Sale

Founded: 1980

HQ: United States

The LMT Defense MARS is a semi-automatic, gas-operated rifle with direct-impingement or short-stroke piston operation and ambidextrous controls, and a signature 5.56×45mm NATO chambering. Its monolithic one-piece upper enables user-level quick-change barrels and caliber swaps. On FirearmLand, LMT Defense MARS listings most often appear in 5.56 NATO and 7.62x51mm NATO.

LMT Defense MARS Auctions

3 active auctions ending soon

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

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