PTG Headspace Go Gage 6.8mm Remington SPC Ackley Improved 40-Degree Shoulder
- DPMS Ejection Port Cover Hinge Pin Snap Ring AR-15, LR 308... $2.49 Available
- CMMG Lower Receiver Parts Kit AR-15... $65.99 Available
- DPMS Steel Barrel Nut AR-15 Matte... $7.69 Available
- DPMS Flash Hider A2 1/2"-28 Thread AR-15 Matte... $6.09 Available
- Yankee Hill Machine Crush Washer AR-15... $1.99 Available
- AR-Stoner Gas Tube Roll Pin AR-15 Stainless Package of 2... $2.49 Available
- DoubleStar Charging Handle Assembly AR-15 Aluminum Matte... $17.79 Available
- DPMS Forward Assist Assembly Round AR-15, LR-308 Matte... $12.29 Available
- Del-Ton Gas Tube AR-15, LR-308... $12.79 Select Options
These Go Gages represent the lower limit of SAAMI specifications for proper headspace dimensions. If the action closes with this gage is inserted, then the firearm is within acceptable minimum headspace dimensions.
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