CMMG - RESOLUTE® MK4 5.56X45MM NATO ASSEMBLED UPPER RECEIVER

Upper CMMG UPC 810103473461 MPN 55BB40B-AB

CMMG - RESOLUTE® MK4 5.56X45MM NATO ASSEMBLED UPPER RECEIVER
$432.99

at Good 4 Guns · checked 40 minutes ago

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8 retailers · $465.65 to $489.99 shipped

This listing: Brownells $595.38

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Price history

Lowest price across retailers each day.

Lowest seen
$431.99
Typical price
$452.38
Tracked since
Apr 10, 2026

Today's best price is $1.00 above the 214-day low and 4% below typical.

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