Shipping Information:
We are experiencing a large increase in orders. Non-firearm orders are estimated to ship within 7 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 M400 Classic 5.56mm Rifle

  • Item Number: RM400-16B-C
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  • Condition: NEW
Temporarily Out of Stock
  • Includes free shipping
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Product Description

Designed for use in law enforcement, military operations, or the sporting field as well as competitive shooting. The SIGM400 is a true AR platform tactical rifle. Provides unparalleled accuracy, with a 16” 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.

    • Direct impingement gas operating system with rotating locking bolt
    • 5.56 x 45 mm NATO Chrome-lined barrels with phosphate finish
    • Accepts most M16 type magazines
    • A2 Type flash supressor
    • ”F” marked fixed front sight

Firearm Specifications

  • Caliber: 5.56 X 45mm NATO
  • Barrel Length: 16”
  • Action: Semi-Auto
  • Trigger Type: MIL-STD
  • Trigger Weight: 7.6 lbs
  • Overall Length: 39.5”
  • Magazine Capacity: 30 Rounds

Customer Comments & Questions

Customer Reviews

(5 out of 5) Awesome zombie killer
by from Port Hueneme, California on

Great gun. No problems. It's a Sig