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300 Blac
Sig Sauer

SIG Cal-X Kit MCX 300BLK 6.75" Tap

UPC 00798681579563

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1 offer · 0 in stock · sorted by best price
RetailerPriceStockLast checkedDeal
East Valley Tactical$685.33Out of stock26m agoGo to deal

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Description

The official conversion kit for your MCX Virtus. Convert your AR15 to the 6.75" 300 Blackout MCX Virtus. Complete with Virtus barrel and gas block assembly.

Specs

BrandSig Sauer
CategoryParts · Parts
Caliber300 Blackout
UPC00798681579563
TypeUpper
ColorBlack
ModelMCX
Muzzle3 Prong Flash Hider
SeriesCaliber Exchange Kit
AccessoriesTapered Lug
Firearm_fitAR-15
Barrel_finishBlack Nitride
Barrel_length6.75"
Similar_itemsKit
Barrel_materialCarbon Steel

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D.O.P.E.Price history

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

Current best
$685.33
Low
$685.33
Oct 8, 2026
High
$685.33
Oct 8, 2026
Tracking since
Oct 8, 2026
One price check so far ($685.33 on Oct 8, 2026). The chart fills in as retailers are re-checked.
Recent price checks (1)
DateRetailerPriceStock
Oct 8, 2026, 5:15 PM PTEast Valley Tactical$685.33Out of stock

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