Sig Sauer has introduced the SIG556xi Rifle. By adding the appropriate bolt, the SIG556xi can be changed to any of three calibers, 5.56x45mm NATO, 300 Blackout, and 7.62x39mm.
SIG556xi Standard Specs:
- Item Number: R556xi-16B-C, R556xi-16B-S
- Caliber: 5.56mm NATO
- Overall Length: 35.8 in / 912.9 mm
- Rifling: 1 in 7in
- Number of Grooves: 6
- Barrel Length: 16.0 in / 406.4 mm
- Weight w/out Mag: 7.1 lb / 3.22 kg
- Mag Capacity: 30 Rounds
- Accessory Rail: Yes
- Options: Swiss-Style Folding Stock with Removable Cheek Rest, Ambi Controls, Locking Flip-Up Sights, Also Available with a Quad Rail
SIG556xi Carbon Specs:
- Item Number: R556xi-16B-CF
- Caliber: 5.56mm NATO
- Overall Length: 35.6 in / 904.2 mm
- Rifling: 1 in 7in
- Number of Grooves: 6
- Barrel Length: 16.0 in / 406.4 mm
- Weight w/out Mag: 7.0 lb / 3.18 kg
- Mag Capacity: 30 Rounds
- Accessory Rail: Yes
- Features: Carbon Fiber Rail Adaptable Handguard, Side-Folding Stock with Internal Sling Points, Ambi Controls, Locking Flip-Up Sights
SIG556xi Russian Specs:
- Item Number: R556xi-762-16B-C-AK
- Caliber: 7.62 X 39mm
- Overall Length: 35.8 in
- Rifling: 1 in 9.5in
- Number of Grooves: 4
- Barrel Length: 16.0 in
- Weight w/out Mag: 7 lbs 1 oz
- Mag Capacity: 30 Rounds
- Accessory Rail: Yes
- Features: 3-Position Gas Piston Operating System with Rotating Bolt, Swiss-style Folding Stock with Removable Cheek Riser, Accepts Most AK-Type Magazines, Locking Flip-Up Front/Rear Sights, also available with a Quad Rail