4.8
- Upgraded furniture
- Mid-length gas
- Polished trigger
- Competitive price
- Handguard could be better
Editor’s Note:
Read full review
The Sig M400 Tread is a great mid-level AR-15 for those looking for something above an entry-level rifle without breaking the bank. Good furniture, a quality barrel and twist rate, and a decent trigger make this rifle hard to beat its the price point.
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Sig Sauer M400 Tread Specs
Action
Direct Impingement
Barrel Length
16 in
Magazine Capacity
30+1-Round
Magazine Included
1 x 30-Round
Magazine Type
Removable
Caliber
5.56 mm NATO
Finish
Black
Front Sight
None
Rear Sight
None
Overall Length
30.8 in
Muzzle
Flash Hider
Stock Material
Polymer
Weight
7 lbs
Price
$879.99
Sig Sauer M400 Tread Features
1:8 twist stainless steel barrel
Mid-length gas system
Magpul SL-K stock
Ambidextrous safety
Free-floated handguard
Three prong flash hider
Polished trigger
By The Numbers - Sig Sauer M400 Tread
Accuracy
The stainless steel barrel is capable of MOA accuracy with the right ammo and shooter.
Reliability
Sig has a reputation for reliable firearms, and our M400 Tread was no exception.
Customization
Like most AR-15s, customization options are near-infinite.
Ergonomics
The Magpul stock and Sig grip help make this comfortable out of the box.
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final verdict
“The Sig Sauer M400 Tread AR-15 is a great mid-level rifle that packs an upgraded handguard and pistol grip. The mil-spec trigger is decent and since it’s an AR there’s limitless further upgrade potentials. Reliability has been great and the price also offers great bang-for-the-buck. If you’re looking to get into the AR-15 game this is a great pick for your first or even second rifle.” – Ken Whitmore
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