This is the Glock G19 BTB Gen 3 Pistol Frame and DIY Rail System by FreeMenDontAsk. The system relies on a DIY metal rail system which is added to a printed frame. Reference the Front and Rear Rail ...
The Glock 19 has a comfortable, durable polymer frame and an ergonomic design that lends itself naturally to a point of aim. On the other hand, the Sig Sauer P365 sports a bit smaller grip size ...