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.338 Lapua Magnum Kit AR-15 Lower Receiver 80% Finished
.338 Lapua Magnum KitAR-15 Lower Receiver 80% Finished

What we have done here is something special. We have built an AR-15 style weapon around the .338 Lapua cartridge. Imagine having the power and range of the .338 Lapua combined with the extreme flexibility and customizability of the AR-15 platform.

This is our AP 80% finished AR-15 lower receiver is precision machined for your gun build. Being 80% finished there is still work to be done on this lower receiver before it is functional. This unfinished lower receiver is not a FFL item and...



AR-15 Lower Receiver Jig 6.8 SPC II Barrel
AR-15 Lower Receiver Jig6.8 SPC II Barrel

Our engineers have done their research to bring you a superior AR-15 jig. We now offer THE BEST AR-15 jig around! They should last you a lifetime of hobby building.

The A.P. 6.8 SPC barrel is chambered for high pressures and is ready to be added to your AR-15 platform weapon.



Barrel Services AR-10 Lower Receiver 80% Finished
Barrel ServicesAR-10 Lower Receiver 80% Finished

Click here to visit our barrel customization service center to put the finishing touches on your new Advantech Precision barrel. 

Precision machined from solid weapons grade aluminum, our 80% AR-10 lower is adaptable to DPMS and SR-25 style mags.




Our customers use our parts to make and assemble fine weapons.  Just ask us! We can assemble and ship everything you need to accomplish a build just like this A.P. custom 6.8 SPC. Just ask at