Round table gun review’s Sig Sauer 556xi 5.56 Review. It’s a simple scheme. Shooters from different backgrounds get together, shoot guns, discuss guns and rate guns. Thumbs up, thumbs down or the ever noncommittal “meh” are the only options. What starts out as four separate reviews culminates in a broad overview and full bodied review of each individual gun. WE WELCOME COMMENTS! Agree, disagree, call us names, whatever you wish… we even welcome discord if it will ultimately serve the prospective buyer of these guns and help them make informed decisions.

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www.arnzenarms.com – Local and now national retailer of guns and gear.

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www.gunfightertargets.com – Awesome Reactives!

www.reillydefensivetraining.com – real life firearms training for everyone

Here is what Sig Sauer has to say about the 556xi:

http://www.sigevolution.com/sig556xi

One of the world’s most storied platforms has been rewritten. Combining the best of the AR and AK with the legendary reliability of the Swiss 550 Series, the SIG556xi® is the most adaptive tactical carbine ever. A serialized upper enables in-field adjustment of nearly every component. Introducing Generation xi.

SIG556xi SIG556xi Russian SIG556xi with SB15
5.56 NATO / 7.62 x 39mm 7.62 x 39mm 5.56 NATO / 7.62 x 39mm
Adjustable 3-Position Gas Piston Adjustable 3-Position Gas Piston Adjustable 3-Position Gas Piston
Semi-Auto Semi-Auto Semi-Auto
977.9 mm / 38.5″ 977.9 mm / 38.5″ 678.2 mm / 26.7″
241.3 mm / 9.5″ (5.56 NATO)
266.7 mm / 10.5″ (7.62x39mm) 266.7 mm / 10.5″ 241.3 mm / 9.5″ (5.56 NATO)
266.7 mm / 10.5″ (7.62x39mm)
1:7 (5.56 NATO) / 1:9.5 (7.62x39mm) 1:9.5 1:7 (5.56 NATO) / 1:9.5 (7.62x39mm)
406.4 mm / 16.0″ 406.4 mm / 16.0″ 254 mm / 10.0″
Side-Folding Swiss Style Side-Folding Swiss Style Pistol Stabilizing Brace
3.22 kg / 7.1 lb 3.22 kg / 7.1 lb 2.86 kg / 6.3 lb
Polymer/Aluminum Polymer/Aluminum Polymer/Aluminum
Steel Upper / Aluminum Lower Steel Upper / Aluminum Lower Steel Upper / Aluminum Lower
30 30 30
2-Stage 2-Stage 2-Stage
2.95 kg – 3.40 kg / 6.5 lb – 7.5 lb 2.95 kg – 3.40 kg / 6.5 lb – 7.5 lb 2.95 kg – 3.40 kg / 6.5 lb – 7.5 lb
Ergonomic xi w/ Storage Ergonomic xi w/ Storage Ergonomic xi w/ Storage