The Patriot Ordnance Factory Tombstone is a 9mm Luger pistol caliber carbine with a 16.5-inch fluted threaded barrel and a 20+1 capacity. It has a black aluminum receiver with a Picatinny rail and an M-LOK handguard. The stock is a Magpul SGA black synthetic. 
 

Key Specifications 

• Brand: Patriot Ordnance Factory 
• Model: Tombstone 
• Caliber: 9mm Luger 
• Action: Semi Auto 
• Capacity: 20+1 
• Barrel Length: 16.5 inches 
• Color/Finish: Black 
   

Detailed Features 

• 16.5-inch fluted, threaded barrel 
• Black aluminum receiver with Picatinny rail 
• M-LOK handguard for accessory mounting 
• Magpul SGA black synthetic stock 
• 20-round capacity

Owners of the POF Tombstone appreciate the threaded barrel and M-LOK handguard as practical choices for a 9mm carbine, saying the platform runs reliably on common pistol ammunition without fuss. The Picatinny rail and modular handguard give it flexibility for optics and lights without extra cost.

The Magpul SGA stock gets mixed reactions. Some owners find it comfortable and adjustable for different shooters; others prefer a more traditional fixed stock for a tighter cheek weld with a red dot. The fluted barrel is a nice weight-savings touch that most notice right away.

On value, the Tombstone sits at a premium for a PCC, and that draws occasional criticism. Those who commit to the platform tend to say the build quality justifies it; buyers expecting budget-carbine pricing are sometimes disappointed. Aftermarket support for a POF-pattern PCC is narrower than for more common platforms, which comes up in longer-term ownership discussions.