Geissele Automatics | 15″ 5.56MM Suppressor Alignment Gage

The Geissele Suppressor Alignment Gage (SAG) is a precision tool designed to verify the alignment of a suppressor to the bore of a 5.56mm firearm. Manufactured from hardened steel and finished in black, the SAG provides a long, straight reference for measuring misalignment that can affect suppressor exit alignment. The gage’s construction emphasizes wear resistance and dimensional stability for repeated use in shop and field inspections. Typical applications include gunsmithing alignment checks and suppressor installation verification.

Product Specifications

• The UPC is 854014005243.
• The manufacturer is Geissele Automatics.
• The model name is Suppressor Alignment Gage (SAG).
• The overall length measures 15.5000 inches.
• The width measures 0.8000 inches.
• The height measures 0.9500 inches.
• The listed dimension is 0.95 X 0.80 X 15.50.
• The material is specified as STEEL.
• The finish/color is listed as BLACK.
• The SAG is hardened and ground 0.002” under nominal bore diameter to fit a wide range of bores.
• The outside diameter is finished and straight to 0.001” over its length for a reliable reference line.
• The product listing identifies intended systems as 5.56MM.
• The item attributes include Make: AR-15 as provided in the source data.

Built for professional shops and meticulous owners, the Geissele SAG provides a durable, long-length reference that makes alignment issues easier to detect. Its hardened, precisely ground shaft reduces wear from repeated use and offers repeatable checks for installation and inspection tasks that matter to armorers and gunsmiths.