SIG SAUER SIGM400 Rifle - Manual (Page 32)

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2.1.9. Sights
The SIG M400 rifle features integrated Mil-Std M1913 rails on the upper receiver. These rails may be used for attaching a
variety of sighting systems, both optical and fixed. These sights are designed to provide a simple, durable sighting solution
should you decide not to use an optical device.
FIG 17 SIG M400 SIGHT ASSEMBLY
11SIG455_M400MiniManual.indd 32 8/2/11 3:58 PM