Sig 556R Overview

Shooting Illustrated’s Ed Friedman discusses the SIG 556R. Chambered in 7.62 X 39 mm, the SIG 556R features a Swiss folding stock, and an M1913 rail for accessory attachment.

Sig 556R Specs:

  • Caliber: 7.62 X 39 mm
  • Overall Length: 35.875 in
  • Rifling: 1 in 9.5 in
  • Number of Grooves: 4
  • Barrel Length: 16.0 in
  • Weight w/out Mag: 7 lbs 0 oz
  • Mag Capacity: 30 Rounds
  • Accessory Rail: No
  • Features: Mini Red Dot Sight

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