NOTE: The KP9 Direct fit stock includes our 8.25″ length extension. To calculate overall length, use the following INFO:
| ITEM | LENGTH TO ADD |
| -Hinge | +7/16″ |
| -A3 aluminum buttplate with rubber buttpad | + 11/16″ |
| -Aluminum buttplate with Magpul buttpad 1 | + 1-3/8″ |
| -Aluminum buttplate with Magpul buttpad 2 | + 1-5/16″ |
| -Extendo narrow buttplate | + 2-1/2″ |
Buttplate rear pad dimensions:
| BUTTPLATE | DIMENSIONS |
| -A3 aluminum buttplate with rubber buttpad | 1.25″ x 4.50″ |
| -Aluminum buttplate with Magpul buttpad 1 | 1.50″ x 5.00″ |
| -Aluminum buttplate with Magpul buttpad 2 | 1.50″ x 5.25″ |
| -Aluminum XTENDO low-profile buttplate w/pad | 0.75″ x 4-3/8″ |










