These Modular stocks are designed for firearms that already have a rear Picatinny rail. The A3 Tactical hinge can be mounted to fold left or right, and latches in both the open and closed positions. 

The offset extensions allow the user to configure their stock in 4 different setups. This allows the user to raise or lower their cheek rest, avoid obstacles like side charging handles or ejection ports, and raise or lower the buttplate. 

All components are machined from aluminum and anodized low-gloss black. Made in the USA!

Features:

• Picatinny (1913) mount - push-button style hinge or leverage style hinge
• 12 different extensions for configuring different lengths and offsets
• Hinges can fold right or left
• Hinges latch in both folded and open position
• 4 buttpad options

NOTE: Extension lengths are actual length of the extensions. Buttpad is not calculated in the length.