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 PCB features a folding pivoting contour 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 PCB is the ideal choice for fast-moving operators.

Available to All Legal Purchasers

Free Shipping

* Please note any additional items will add shipping charges to your order at checkout. After your order is placed, our customer service department will apply the discount of FREE SHIPPING to the whole order and send a confirmation work order reflecting the discount. As always, your card is not charged until your order is shipped.

* Please note Free Shipping applies only to orders shipping within the Continental United States. Orders outside CONUS will incur Standard Shipping Charges
SIG PMCX-300B-5B-TAP-NB

Retail: $2,749.99
Price: $2,499.00
You Save: $250.99 (9.1%)
Availability:

In Stock




Quantity:


Order Details

  • Not available where prohibited by law
  • Offer not available in all states
  • All web sales must go through a Federal Firearms Licensee
  • Your order confirmation will contain information on how to submit your qualification credentials and FFL's information
  • Coupon codes/Discount codes not applicable
  • Please check out the Individual Firearms Sales page for more details on the ordering process.
CALIBER B .300 BLK
Barrel Length 5.5 in (140 mm)
Mags Included (1) 30 rd Mag
Mag Type AR-15
Sights None, Optics Ready
Action Type Semi-Auto
Stock Type PCB
Barrel Material Carbon Steel
Trigger Type SIG Enhance
Twist Rate 1:5
Overall Length 23 in (584mm)
Overall Width 2.8 in (71mm)
Height 8.0 in (203 mm)
Threads None
Accessory Rail M-LOK
Operating System Gas Piston
Weight 5.1 lbs (2.7 kg)