MARS-L SOPMOD COMPLETE LOWER RECEIVER
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Lewis Machine & Tool
Overview
The MARS-L SOPMOD Complete Lower Receiver from Lewis Machine & Tool is designed as a fully assembled lower, ready for integration into your AR-15 platform. With its ambidextrous controls, this receiver offers versatility for both left- and right-handed shooters, making it a practical choice for a wide range of operators. This lower receiver is suitable for multi-caliber builds, but it is frequently paired with a carbine gas system and 5.56 NATO caliber for optimal performance in standard configurations.
Specifications
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Build history on GunPartPicker
Builders have been adding the Lewis Machine & Tool MARS-L SOPMOD COMPLETE LOWER RECEIVER to their builds on GunPartPicker since February 2026. All time, it ranks #419 of the 996 lower receivers builders have added. Builds with this lower receiver are nearly all AR-15.
Updated · from real builds on GunPartPicker
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Frequently Built With
The part most often added in each category by the 10 builds that include this one
Daniel Defense MK18 RIII, 5.56mm, 10.3 Barrel, Black, Upper Receiver Group
LMT Defense Short Tactical Charging Handle w/Enhanced Latch 7.62x51mm/6.5 Creedmoor, Black
Geissele Automatics .154" SSA Trigger
Seekins Precision NX15 5.56 NATO AR-15 Bolt Carrier Group
Emissary Development Handbrake - M-LOK - FDE
EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
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