Name: CMMG Upper MK4 RCE 300 BLK Whisper
Brand: Cmmg
SKU: 9752cmp

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1 offer · 0 in stock · sorted by best price

Retailer	Price	Stock	Last checked	Deal
Locked & Loaded	$680.71	Out of stock	44m ago	Go to deal

Prices and stock are from each retailer's latest check and can change. Price Dope may earn a commission from retailer links. Disclosure

Description

Caliber: 300 BLK - Barrel: 16 medium weight taper profile - Muzzle: CMMG SV brake threaded 5/8-24 - Hand Guard: CMMG RKM14 KeyMod hand guard - Receiver: Forged 7075-T6 AL M4 type - The Mk4 RCE is one of CMMG's premiere uppers. The Mk4 RCE features a 16 416 stainless steel medium taper profile barrel CMMG's own SV muzzle brake and RKM14 KeyMod hand guard.

Specs

Brand	Cmmg
Categories	· Other
UPC	00815835016627

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D.O.P.E.Price history

Lowest price across connected retailers, from every price check we've recorded.

Current best: $680.71
Low: $680.71
High: $680.71
Tracking since: Oct 10, 2026

One price check so far ($680.71 on Oct 10, 2026). The chart fills in as retailers are re-checked.

Recent price checks (1)

Date	Retailer	Price	Stock
Oct 10, 2026, 9:05 PM PT	Locked & Loaded	$680.71	Out of stock

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