Manual

2.2. Technical specifications
SG 550 SG 551
Dimensions inches
Caliber inches
.223 .223
Total length inches 39.29 34.53
Length with butt folded inches 30.39 25.63
Barrel
Barrel length inches 20.78
16.02
(USA)
14.3 (others)
Number of grooves 6 6
Rifling:
SG550-1/ SG551-1 right inches 10 10
SG550-2/ SG551-2 right inches 7 7
Sights
Type Diopter sights
Sight base mm 21.26 18.34
Range adjustment m 100 to 400
yards 110 to 440
Weight
Weapon incl. empty
magazine
lb 9.03 7.49
Empty 20 rd. magazine
oz 3.35 3.35
Empty 30 rd. magazine
oz 3.87 3.87
Loaded 20 rd. magazine
oz 11.99 11.99
Loaded 30 rd. magazine
oz 16.75 16.75
Subject to change without notice
14