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SIG Sauer MCX Rattler 300 PSB
Item No. 255199
SIG Sauer MCX Rattler 300 PSB is rated 5.0 out of 5 by 4.
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Details

SIG Sauer MCX Rattler 300 PSB

SIG Sauer MCX Rattler 300 PSB is rated 5.0 out of 5 by 4.
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Item No. 255199
$2,299.99 $2,319.99
Additional Freight charge of $15.00 applies.
Product Actions

This item is currently not available.

This item is excluded from all discounts and promotions.

Firearm Restrictions Apply: Please Read
Purchasing Firearms Online at Gander It is the customer's responsibility to follow all Federal, State, & Local Laws concerning the sale and ownership of all firearms. You may inquire via email to our firearms representatives to have your questions answered or call 1-888-542-6337 and press option 3 for firearms. All firearms MUST be picked up by the PURCHASER with valid photo identification at your local Gander Outdoors store or at an FFL dealer in the area. By purchasing this firearm you are agreeing to the following statements: • You must meet the age requirement 18 or 21, depending on your state law. State and local laws may vary. • You understand it is your responsibility to comply with all federal, state, and local laws regarding firearm transfer and ownership. • You understand that the firearm(s) you have purchased will be shipped to your local Gander Outdoors store or to an FFL dealer in the area. The firearm(s) must be paid for using a Credit Card under your name and must be picked up by (you) the purchaser with valid photo identification.
Additional Information
The SIG MCX in a discrete platform, the Rattler features a 3-position pistol brace and a 5.5" barrel with PDW upper.

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 comes with 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 hand guards matched with a PDW upper and 5.5" barrel, the MCX Rattler PSB is the ideal choice for fast-moving operators.


SIG MCX Rattler PSB
Operating System: Gas Piston
Caliber: 300 BLK
Action: Semi-Auto
Mag Type: AR-15
Mags Included: One 30-rd. Aluminum Mag
Barrel Length: 5.5"
Barrel: Carbon Steel
Stock: Telescoping 3-Position Brace
Trigger: SIG Enhanced
Trigger Weight: 5.5-9 lbs. (24-40 N)
Twist Rate: 1:5
Overall Length: 19.3"
Overall Width: 2.8"
Height: 8.0"
Accessory Rail: M-LOK
Weight: 5.1 lbs.
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  • Rapid deployment, thin, agile, precise
  • 5.5" PDW barrel
  • 3-position telescoping pistol brace
  • Free-floating M-LOK hand guards
  • One 30-rd. mag included
Action Semi-Auto
Barrel Carbon Steel
Barrel Length 5.50 in
Caliber .300 AAC Blackout
Firearm Capacity 30
Firearm Model MCX Rattler
Firearm Type Centerfire Rifle
Firearm Weight 5 lb. 2 oz.
Frame Black Hard-Coat Anodized
Number of Magazines 1
Vendor Part Number PMCX-300B-5B-TAP-PSB
Unit Weight 8.50 lb
Brand Sig Sauer
Rated 5 out of 5 by from Fun and Reliable So far I have put about 400 rounds down range with the Rattler and had a blast. Its been very reliable without a single jam or miss-feed. I do need to test various ammo brands and weight to find the least amount of POI between super, sub, suppressed, and unsuppressed so I can get the best zero for my red dot sight. Supersonic unsuppressed always gives a good tight group, but sub-sonics are a bit off more than expected.
Date published: 2019-01-22
Rated 5 out of 5 by from Goes everywhere, Adequate Firepower, Dependable! I’ve alway been taught that a Pistol is only meant to fight your way to a Rifle, With the Sig Rattler I can fit it into a small backpack and conceal carry it keeping a long gun close. I wish I would of had this weapon when I was driving through Kabul every day in a Toyota Land Cruiser.
Date published: 2018-09-12
Rated 5 out of 5 by from Wow factor, turbocharged! After a long stint with pistol caliber carbines ( not that have anything against them), I am thrilled at the power factor of the Rattler in its size. So far no malfunctions, except for a batch of bad Remington ammo. I expect it to be a keeper.
Date published: 2018-09-12
Rated 5 out of 5 by from Great gun Love, love, love it. Have had it for a month and only put 200 rounds through it. 100% reliable. Quality is excellent. Fits perfectly in my 511 sub gun pack.
Date published: 2018-09-13
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Do you need a SBR tax stamp for this or is it considered a pistol?

Asked by: Malaber
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