The Gun Store | Waterbury CT

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Barnes Suppressor Series Sierra MatchKing Rifle Ammunition .300 Blackout 220gr HP 1060 fps 20/ct

May 22, 2026
DBB556C16M50B9 1

DBB BBL 556 16″ CARB MED 1/9 BLK

May 22, 2026

SIG RM40016BTRDV2 M400 556 V2 16 30R BLK

$1,010.36

SIG RM40016BTRDV2 M400 556 V2 16 30R BLK

9 in stock

SKU: TSW|163124 Category:

The M400 TREAD features a free-floating M-LOK enhanced handguard that is lightweight yet rigid for extreme control and ease of mounting accessories such as lights and handstops. The lower receiver has an ambidextrous safety for right or left-handed operation and includes an integrated QD mount for easy sling attachment. The M400 TREAD features a stainless steel barrel offering durability and corrosion resistance while improving accuracy; 3-prong flash hider; 1:8 twist rate; mid-length gas system; SIG Matchlite 2-stage trigger; MAGPUL SL-K telescoping stock for easy adjustment and a customized fit.

UPC

798681688005

Manufacturer

Sig Sauer

Manufacturer Part Number

RM40016BTRDV2

Action

Semi-Auto

Barrel Length

16"

Caliber/Gauge

.223 REM/5.56 NATO

Capacity

30 + 1

Rate of Twist

1:8"

Safety

Ambidextrous

Shipping Weight

8.6