[SHOT 2025] Show Low Updates Their PCC Design, Working On 10mm Option

By Zac K

The 9mm option on the left, the under-development 10mm on the right.

Show Low Manufacturing is back at SHOT Show for 2025 with an updated lineup. They’ve taken their Black Jack pistol caliber carbine (PCC) and changed the design for better longevity, and they’re also working on a new 10mm design.PCCs @ TFB: [SHOT 2024] Show Low Black-Jack Is A 9mm Mashup They Finally Did It: KelTec Sub2000 in 5.7×28 POTD: AR9 PCCs By Italian Armi Dallera Custom SHOT 2025: Marck-15 Hydra 10mm H21 Is A Hard-Hitting PCCUpdated 9x19mm designAt the 2024 SHOT Show, Show Low’s Black Jack PCC was exhibited with a detent delay design. Now, a year later, they’ve updated this design to a new roll pin delay system (currently patent pending). Why the change? They said they noticed some wear on the detent after thousands of rounds through the old design.

Once they updated to the new design, they also discovered it was more accurate,

Source: The Firearm Blog