Shipping Information:
We are experiencing a large increase in orders. Non-firearm orders are estimated to ship within 12 business days after the order is placed. Firearm orders will require more time. We apologize for any inconvenience. We are working to process and ship each order as quickly as possible.

If you would like to request a cancellation of your order, you may do so by visiting your Order History page, and selecting the order you would like to cancel. Due to the high demand and limited supply of certain items, we have temporarily suspended dealer sales in order to service as many of our own customers as possible.

Sig Sauer PM400 Swat 5.56 Centerfire Pistol with SB15 Stabilizing Brace

  • Item Number: PM400-11B-S-PSB
  • /
  • View More Items by Sig Sauer
  • /
  • Condition: NEW
No Longer Available

    This product is no longer available. We don't know when or if it will be back in stock.

    Our Price: $1,249.99 to $1,349.99
Share this

    Ruger AR-556 5.56mm Semi-Automatic Pistol with SB Tactical Stabilizing Brace


    Springfield Saint Victor 5.56mm AR-15 Pistol with SBA3 Pistol Stabilizing Brace


    Alex Pro Firearms 5.56mm AR-15 Takedown Pistol with Shockwave Stabilizing Blade

  • Hornady 5.56 NATO 75 gr BTHP Match Frontier 20/Box

    Hornady 5.56 NATO 75 gr BTHP Match Frontier 20/Box
    ($0.95 / round)

  • Winchester 5.56mm 55 gr FMJ M193 1000/Box

    Winchester 5.56mm 55 gr FMJ M193 1000/Box
    ($0.75 / round)

  • Winchester 5.56 mm 62 gr FMJ M855 Green Tip Lake City 1000/Case

    Winchester 5.56 mm 62 gr FMJ M855 Green Tip Lake City 1000/Case
    ($0.80 / round)

Product Description

What’s in the Box

  • Sig Sauer PM400 Pistol
  • (1) Magazine
  • 3-Pack of Ergo Grips
  • Cable Lock
  • Instruction Manual

The SIG M400 Series Tactical AR pistol, designed for use in law enforcement, military operations, or as well as competitive shooting. The SIG M400 is a true AR platform tactical pistol. Provides unparalleled accuracy, with a 11 chrome-lined and phosphate coated barrel that provides maximum durability and corrosion resistance. A 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability.

This firearm features a direct impingement gas-operating system with rotating locking bolt and a two-piece aluminum quad-rail. It also includes the new SB-15 pistol stabilizing brace*, which dramatically improves the single-handed performance of buffer tube equipped pistols and is ATF compliant, veteran designed, quick and easy to install, and made in the USA.

*The ATF has reviewed this product and determined that attaching the SB15 to a firearm does not alter the calssification of the firearm or subject to the firearm to NFA control.

  • Item Number: PM400-11B-S-PSB
  • Caliber: 5.56 x 45mm NATO
  • Action Type: Semi-auto
  • Flash Suppressor: A2 Type
  • Weight w/out Mag: 6 lbs
  • Overall Length: 28”
  • Barrel Length: 11”
  • Rifling: 1 in 7”
  • Sights: Fixed Front Sight, Flip-Up Rear Sight
  • Mag Capacity: 10 Rounds

Customer Comments & Questions

Customer Reviews

(5 out of 5) 5 Star Sig AR15 pistol
by from Elk Grove, ca on

This AR pistol is built like a tank but is light and easy to shoot. Out of the box I can shoot 4 groups at 25 yards. At 50 yards a Burris 5X scope & bench rest shooting, I can keep 2 groups. This pistol shoots better than me and not one malfunction after 1000 rounds.