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Lewis Machine & Tool
Overview
The Mars-H Stripped Lower Receiver from Lewis Machine & Tool is designed for the AR-15 platform and accommodates calibers up to .308 Win. This stripped lower features ambidextrous controls, making it user-friendly for both left- and right-handed builders. It is particularly well-suited for builds utilizing a mid-length gas system, which is a popular choice among those looking to optimize performance when chambered in .308 Win.
MARS-H Stripped Lower Receiver - MARS-H 260 Rem/6.5 Cm/7.62 NATO Stripped Lower Receiver
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Lewis Machine & Tool MARS-H Stripped Lower Receiver - MARS-H 260 Rem/6.5 Cm/7.62 NATO Stripped Lower Receiver ranked #278 of the 507 lower receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #242 of the 961 lower receivers builders have added. Builds with this lower receiver are nearly all chambered in .308 Win and nearly all AR-10.
It was in stock most days in August 2026, and today 3 of the 4 retailers we track have it in stock. It dipped to $485.10 at Brownells for a stretch in August 2026, under its usual $510.99 to $536.99, so sales do come around. Buying today, the lowest price is $536.99 at KY Gun Company, above August's low of $485.10, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →Check it against the live catalog:
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