|Gemtech Blackslide 45|
The Glock 21 factory barrel I purchased is described as M16x1LH. Some suppressors come threaded like this from the factory. Some require adapters. Some have throats that can be swapped out.
This is notable because it can add cost to an already expensive accessory.
Is this episode of tracking the process here is what I did next:
- I went to CVS and obtained two passport photos. It took five minutes and cost $9.95.
- These photos I attached to the ATF Form 4 in the required spot. I filled out the form. It took about five minutes.
- Next I went down to the County Courthouse and got my fingerprint cards done. $10 and it took 35 minutes because there was three people in line in front of me.
- I then dropped off the package for the Sheriff to run a local background check and sign off. No fee.
--Next up: Write a check for $200 and mail it to the ATF!