DPMS Panther Polished Trigger AR-10 Lower Build Kit w/Overmolded Grip One Size. Included is everything you need to assemble your DPMS AR-10 Stripped Lower Receiver: Panther Polished Fire Control Group Magazine Catch Assembly Front and Rear Takedown Pins Springs and Detents AR-10 Bolt Catch Assembly Safety Selector Assembly DPMS Custom Overmolded Grip Assembly Six-Position 7075-T6 Buffer Tube Carbine Spring Latch Plate Castle Nut Short Buffer. The AR-10 platform does not enjoy a common design between manufacturers. As a result there can and will be subtle differences in the parts of various manufacturers. For best results we recommend only using DPMS or PSA PA-10 components with our upper and lower receivers. We do not recommend using other manufacturer's components we cannot guarantee DPMS parts will fit and function with other AR-10 brands. Specifications for DPMS Panther Polished Trigger AR-10 Lower Build Kit w/Overmolded Grip: Manufacturer: DPMS Gun Make: AR Platform Gun Model: AR-10 Package Contents: DPMS Panther Polished Trigger AR-10 Lower Build Kit w/Overmolded Grip DPMS DP51655128521: Panther Polished Trigger AR-10 Lower Build Kit w/Overmolded Grip One Size