Sig Sauer M400

Sig Sauer M400
The SIG M400 is a tactical rifle designed for use in law enforcement, military operations, or the sporting field. It is an AR platform tactical rifle with a 16’ chrome-lined and phosphate coated barrel that provides corrosion resistance. The SIG M400 features a direct impingement gas operating system with rotating locking bolt, 5.56 x 45 mm NATO Chrome-lined barrels with phosphate finish, and accepts most M16 type magazines. It also has an M16A2 Type flash supressor, fixed front sight, and detachable carry handle M16A2 type rear sight.

Sig Sauer M400 Price History

A Sig Sauer M400 is currently worth $971.69 new and $832.38 used. The price is based on 648 sold items.
Price Description Condition Date Sold
$1,399.99 5.56 NATO Sig Sauer SIG M400 SWTCHBLD PST 30R 798682656591 New 8/7/2022
$710.00 5.56mm NATO (.223 Rem.) SIGM400 Pistol Sig Sauer M400 11 inch " barrel New 8/4/2022
$1,199.99 5.56 NATO Sig Sauer M400 Tread Pistol 5.56x45mm 11.5" Barrel with Stabilizing Brace 30-Round Polymer Black 798681619542 New 7/31/2022
$1,049.99 .223 Remington (5.56 NATO) Sig Sauer M400 Tread (PM400-11B-TRD) PM40011BTRD New 7/18/2022
$1,105.00 5.56x45 mm NATO Sig Sauer M400 Tread Pistol 5.56 11.5" Barrel 798681619542 PM400-11B-TRD New 7/14/2022
$899.99 5.56mm NATO (.223 Rem.) PM400 Pistol SIG SAUER M400 TREAD PISTOL 400 5.56 11.5" 11 inch " barrel New 7/10/2022

Sig Sauer M400 Specs

Brand Category MSRP UPC Caliber Action Capacity Barrel Length Finish Weight Length Sight Type
Sig Sauer Rifles $731.09 - $1499.99 798681436897
5.56×45mm NATO
.223 Remington
22 Long Rifle
.223 Wylde Chamber
.300 AAC Blackout
Semi-Automatic 30Rd rounds
10+1 rounds
30+1 rounds
17+1 rounds
30 rounds
10 rounds
16" inches
18" Heavy Barrel inches
29" inches
11.5" inches
Hard-Coat Alloy
40 oz
32.6 oz
96 oz
18" Heavy Barrel
None (Optics Ready)
Night Sights
Front Blade
Coyote Brown
Kuiu Verde

Sig Sauer M400 Ratings

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User Ratings
Matthew B
Rating: 100%

I picked up my Sig Sauer M400 on September 6th from my FFL. I had planned to take it out for a test drive that weekend but I ended up having to work late. It was a great gun and I'm glad I got it.

April 26, 2022

David T
Rating: 100%

I was looking for a rifle that would be perfect for my needs and I found it in the Sig Sauer M400. It has everything I need and more. The weight is perfect, the accuracy is amazing, and it's just an all-around great rifle.

March 28, 2022

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