FLASH SALE — 15% OFF SITEWIDE — ENDS MIDNIGHT — discount applied automatically at checkout
FREE shipping on orders over $99 · 30-day returns
About · Blog · Contact
NSNew York Gun Shop

Sig Sauer MCX Rattler 300 Blackout Semi-Auto Pistol with Pistol Stabilizing Brace

SKU741e28a3bc20 Categoryhandguns
✓ Free shipping over $99   ✓ Ships in 1–2 business days   ✓ 30-day returns

About this product

What's in the Box MCX Rattler 300 Blackout (1) Magazine Cable Lock Owner's Manual,Rapid deployment, thin, agile and precise. This is the SIG MCX® Rattler. Featuring a 5.5" PDW barrel, the MCX platform has never been more compact or accessible. Ready to go wherever it's needed, the MCX Rattler PSB features a 3-position telescoping pistol brace for stability and easy concealment. This gun was designed from the ground up to be as discrete as possible while retaining all the robust capabilities of the MCX. Free-floating M-LOK® handguards matched with a PDW upper and 5.5" barrel, the MCX Rattler PSB is the ideal choice for fast-moving operators. Firearm Specifications,Manufacturer: Sig Sauer Model: MCX Rattler Model Number: PMCX-300B-5B-TAP-PSB Caliber: 300 Blackout Barrel Length: 5.5" Overall Length: 19.3" Width: 2.8" Height: 8.0" Trigger Weight: 5.5-9 lbs. Twist Rate: 1:5" Accessory Rail: M-LOK Operating System: Gas Pistol Trigger Type: SIG Enhanced Barrel Material: Carbon Steel Stock Type: Telescoping 3-Position Brace Magazine: 1- 30 Round Magazine   Firearm Specifications,Manufacturer: Sig Sauer Model: MCX Rattler Model Number: PMCX-300B-5B-TAP-PSB Caliber: 300 Blackout Barrel Length: 5.5" Overall Length: 19.3" Width: 2.8" Height: 8.0" Trigger Weight: 5.5-9 lbs. Twist Rate: 1:5" Accessory Rail: M-LOK Operating System: Gas Pistol Trigger Type: SIG Enhanced Barrel Material: Carbon Steel Stock Type: Telescoping 3-Position Brace Magazine: 1- 30 Round Magazine

Specs at a glance

Sig Sauer MCX Rattler 300 B… SPECS AT A GLANCE 9 lbs WEIGHT
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Staff based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.