For the Glock 21SF with a Picatinny rail, a holster designed specifically for this model is ideal. Look for options labeled for the Glock 21 or Glock 21SF with accessories, as they will accommodate the rail-mounted attachments. Popular choices include Kydex, leather, and tactical holsters from brands like Blackhawk, Safariland, and Alien Gear. Always ensure the holster provides a secure fit and allows for easy access.
THE GALCO S.O.B. AND THE FOBUS LEATHER PANCAKE MADE FOR THE GLOCK MODEL 21 WILL ALSO FIT THE 21SF
a good custom leather holster is great but BlackHawk! serpa line may have one.
This website has what you need for you question. http://www.blackhawk.com/product/Sportster-SERPA-Holster,1146,1410.htm
If you mean the Galco model M7X224, no. That fits the Glock 17, 22, 31. You might try Galco customer service at 1(800) USGALCO (874-2526)
any small umerax or crossman holster
Many holster makers have one or more types that will fit.
I'm going to guess that you're referring to an inside the waistband holster and an outside the waistband holster. An inside the waistband holster literally fits inside the waistband of your pants, and a outside the waistband holster fits on the outside of the pants, either using a belt or a paddle. The IWB is normally more concealable because it holds the gun much closer to your body, however, many people consider the IWB to be less comfortable.
A Browning Hi Power
Whichever model fits your intended use and budget.
Try some that fit the Walther PP
The Mixson Leathercraft 57 S holster, marked with "418," is designed to fit the Smith & Wesson Model 59, a semi-automatic pistol. This holster is typically crafted for a specific model's dimensions and features, ensuring a snug and secure fit. If you have a different handgun, it's essential to check the holster's specifications to ensure compatibility.
Any one that fits a S&W K frame