The gun on the far left is an Argentine Sistema from the last batch that came through what's-their-faces in Louisiana, the ones that raised a stink because they'd been advertised as "NRA Very Good" and were actually "NRA Look Like They Came Off A U-Boat Wreck". We had pre-ordered, like, a dozen of them at CCA, and I felt guilty so I bought the worst-looking one to use as my own 1911 for 'sperimentin' on.
The hammer is spurless because it's part of the Cylinder & Slide "Warp Speed" lockwork; with the Dlask trigger, the gun has about a 3# pull. It's the first trigger job I ever did myself from start to finish. Since the hammer is spurless, I ground down the tang on the frame and grip safety.