SIG 550 Lower Receiver with Swiss Internals Semi-Auto


Swiss made lowers  BLACK NOT AVAILABLE only  grey-green. Pictures representative of what you might receive.

SKU: PT SAN-0121 Categories: ,


The original Swiss 550 lowers are imported directly from SAN Swiss Arms in Neuhausen, Switzerland (formally known as SIG Neuhausen). The lowers are made with the highest quality materials available. These lowers are brand new. This lower works with all Swiss SIG 550 variances such as the SIG 550, 551, 552, 553, and also on the Sig Sauer 556 US made firearm.
It includes the Swiss internals: trigger, hammer, hammer spring, sear, safety lever, magazine release and bolt hold open. The lower will ship with the installed pistol grip and pistol grip cover. Take Down pins and Butt Stock Axis pins are only included if selected. Other noted features of the Swiss 550 lower are the ambidextrous safety lever and the winter trigger guard. The winter trigger guard folds laterally for easy operation with gloves. The SIG 550 lowers are semi-automatic and made from steel. Choose from two finishes: black or grey-green. This finish is extremely wear resistant and corrosion proof.

No FFL is required for this item. This item must ship via UPS Ground for insurance purposes. NO EXCEPTIONS.

For more information on the Swiss SIG 550 firearm, click here.

Number pieces in packaging:1
Number pieces in box:1

Additional information

Weight 3 lbs
Dimensions 9 × 7 × 2 in

Black Receiver & Black Pistol Grip $974.95, Black Receiver & Black Pistol Grip W/Pins $1030.75, Grey Receiver & Green Pistol Grip $974.95, Grey Receiver & Green Pistol Grip W/Pins $1030.75


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