Sig Sauer M400 Classic 5.56 - 30rd SGRM400-16B-C

Overall Rating:
    (1) reviews

MSRP $1,129.99
Sale Price $899.95
Sale 20 % off

Brand: Sig Sauer
Item Number: SGRM400-16B-C
Availability: Ships in 12-24 Months
Not Available In:   CA   CO   CT   DC   HI   MD   MA   NJ   NY  

Become a VIP Member to get free shipping on all orders!

We are not currently accepting new Pre-Orders, please check back later.

What is a Pre-Order? - Due to the nature of firearm manufacturing and supply and demand manufacturer's may not always be able to keep up with demand. If a firearm is not available in less than six months we allow you to "pre-order" it for $25. This reserves your place in line so that you can get your firearm as soon as it's available. The $25 pre-order fee is applied to the purchase price but is not refundable if you cancel your order. Pre-Orders are on a first come first serve basis which means that orders are fulfilled based on pre-order date. Pre-Order your firearm today!

Sig Sauer M400 Classic 5.56 - 30rd: RM400-16B-C

THE SIG M400 SERIES TACTICAL RIFLE, designed for use in law enforcement, military operations, or the sporting field as well as competitive shooting. The SIG M400 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
  • M16A2 Type flash supressor
  • "F" marked fixed front sight
  • Magpul Rear Flip Up Sight

Additional Information

Specification Details
Item Number RM400-16B-C
Action Semi-Auto
Operating System Direct impingement
Caliber 5.56mm NATO
Overall Length 39.5"
Trigger Type MIL-STD
Trigger Weight 7.6 lbs.
Barrel Length 16.0"
Rifling 1 in 7"
Number of Grooves 6
Weight w/o Mag 6.5 lbs.
Magazine Capacity 30rd
Magazine Type Aluminum
Accessory Rail No
Features Direct impingement gas operating system with rotating locking bolt, M16A2 Type flash supressor, Detachable carry handle M16A2 type rear sight, Accepts most M16 type magazines


Click Here to View and Print the Sales Flyer

Product Reviews (1)

Write a Review

Overall Rating:

Customer Comments

Sig M400 Classic
Great gun at a great price from Rockwell Arms. Its's a classic just like its called. Good fit and finish.