Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
Sig Sauer MCX PDW SBR 5.56 5.5 Barrel 30-Rounds by Sig Sauer -
9% off

Product Description

Get the best deal on the Sig Sauer MCX PDW SBR RMCX-5B-TAP-SBR 5.56 5.5 NFA - Rifles at GrabAGun.com. Get the best deals on NFA - Rifles for sale online at GrabAGun! Sig Sauer for sale online. Flat rate shipping on all guns and ammo with the best prices a

Sig Sauer MCX PDW SBR 5.56 5.5 Barrel 30-Rounds

at GrabAGun
Browse all GrabAGun deals
$2699.99 $2979.99 9% Discount
You save $280.00
Out of Stock
Price verified 2d ago
Buy Now at GrabAGun
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand Sig Sauer
MPN RMCX-5B-TAP-SBR
Sig Sauer

Shop more Sig Sauer Rifles

All 393 in-stock Sig Sauer Rifles from 27 stores →

More from Sig Sauer

GrabAGun
Last Updated:
Oct 26, 2026 07:25 AM
Sold Out
Sig Sauer MCX-LTAW SBR .300 AAC Blackout 6.75 Barrel 30-Rounds Sig Sauer MCX-LTAW SBR .300 AAC Blackout 6.75 Barrel 30-Rounds View Details
$3029.99
Buy Now · $3029.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:24 AM
Sold Out
Sig Sauer MPX SBR 9mm 6 Barrel 35-Rounds w/ Folding Stock Sig Sauer MPX SBR 9mm 6 Barrel 35-Rounds w/ Folding Stock View Details
$2199.99 $2399.99
8% off
Buy Now · $2199.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:24 AM
Sold Out
Sig Sauer MCX SBR Flat Dark Earth .300 AAC Blackout 9 Barrel 30-Rounds Sig Sauer MCX SBR Flat Dark Earth .300 AAC Blackout 9 Barrel 30-Rounds View Details
$2499.99 $2729.99
8% off
Buy Now · $2499.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:24 AM
Sig Sauer MCX Spear SBR Coyote Brown .277 Fury / 6.8x51mm 13 Barrel 20-Rounds Sig Sauer MCX Spear SBR Coyote Brown .277 Fury / 6.8x51mm 13 Barrel 20-Rounds View Details
$4199.99 $4579.99
8% off
Buy Now · $4199.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:24 AM
Sold Out
Sig Sauer MCX Rattler LT SBR .300 AAC Blackout 6.75 Barrel 30-Rounds Sig Sauer MCX Rattler LT SBR .300 AAC Blackout 6.75 Barrel 30-Rounds View Details
$2499.99 $2729.99
8% off
Buy Now · $2499.99
GrabAGun
GrabAGun
Last Updated:
Oct 26, 2026 07:24 AM
Sold Out
Sig Sauer MCX Spear SBR Coyote Brown 7.62 X 51 13 Barrel 20-Rounds Sig Sauer MCX Spear SBR Coyote Brown 7.62 X 51 13 Barrel 20-Rounds View Details
$3999.99 $4379.99
9% off
Buy Now · $3999.99
GrabAGun