SIG SAUER P556 User Manual

Page 32

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P556 Pistol Operators Manual

32

1511582 VER 08.01.08

• During the rearward motion of the bolt carrier (4), the bolt

head (5) is rotated by the control cam (3) so that the locking lugs

(8) are disengaged. The bolt is now unlocked.

• The bolt assembly moves rearward along the receiver rails

(16) as far as the stop (17) with the following taking place:

• the recoil spring (2) is compressed;

• the hammer (7) is cocked;

• the extractor (18) extracts the case from the

chamber; and

• the ejector (19) ejects the case through the port in

the receiver (16).

4.1.2. Bolt Advance

• The force of the compressed recoil spring (2) pulls the

bolt forward.

• The bolt head (5) feeds the next round from the magazine

(20) into the chamber.

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