Really
Glock Certified Advanced Armorer

 

Really
Glock Certified Advanced Armorer

I fail to see the relevance. I can maintain/diagnose/repair Glocks in their factory form all day long. That's what an armorer does. That has absolutely nothing to do with the question at hand.

 

Barrel length only effects leverage. Longer will have more advantage.

Consider that the comp is heavy like a suppressor. You want the longest pistol possible, for reliability. So g17/34/22/35/41.

A comp smokes ports, if you hand load for it.

 

You have to have specific devices and port work to compare. You can't generalize ("all else being equal" does not simplify the variables).

 

How about the same compensator installed on a G17 and a G45?

 

Small comps in my experience are a fad. Yes, they "help", you can use factory ammo, you might have to change the recoil spring, but you wont be amazed by the performance. You'll be left wanting more, eventually coming to the conclusion larger is better.

Let's explore muzzle rise for example. How much are we talking about here? How quickly is the slide going to smack back and forth for it to even be noticed? Yes a compensator will change that, it will probably be noticed. Now, same compensator on a different length gun, well, can you tell the difference between them now with everything going on during the recoil?

Range Toy, ok fine, then if punching paper is the objective then what is the point of the compensator. Because reduced recoil benefits the follow up shots the most. Slow fire target practice with a compensator is really for show.

I'm just going off on this because I spent more than a year building an open gun, and trying to tune it to the most I can get out of it. I'm finally getting somewhere, and what I thought was good still had a long way to go in terms of making that range toy that really does shoot like the magic compensators are supposed to do.

There's no point in buying all the expensive fancy ingredients if they aren't cooked right. A small compensator wont be anything near what a large one can give you.

 

Small comps in my experience are a fad. Yes, they "help", you can use factory ammo, you might have to change the recoil spring, but you wont be amazed by the performance. You'll be left wanting more, eventually coming to the conclusion larger is better.

Let's explore muzzle rise for example. How much are we talking about here? How quickly is the slide going to smack back and forth for it to even be noticed? Yes a compensator will change that, it will probably be noticed. Now, same compensator on a different length gun, well, can you tell the difference between them now with everything going on during the recoil?

Range Toy, ok fine, then if punching paper is the objective then what is the point of the compensator. Because reduced recoil benefits the follow up shots the most. Slow fire target practice with a compensator is really for show.

I'm just going off on this because I spent more than a year building an open gun, and trying to tune it to the most I can get out of it. I'm finally getting somewhere, and what I thought was good still had a long way to go in terms of making that range toy that really does shoot like the magic compensators are supposed to do.

There's no point in buying all the expensive fancy ingredients if they aren't cooked right. A small compensator wont be anything near what a large one can give you.

I'm looking at making this a GSSF Unlimited gun. GSSF doesn't have any power factor requirements or anything like that (if you didn't already know), but I'll need to punch holes as quickly as possible. I'm thinking that the least amount of muzzle rise will allow me to get back on the sights just a tad quicker, at least until I start rolling my own ammo. I was thinking a PMM Gen5 comp on a G17 or G45 for a comped gun (open to other suggestions), or I have a ZP ported barrel/slide set that I will buy a Gen3 frame to host. The cost of either is not a big deal. I'm just trying to figure out which route is best and jump to it instead of wading around trying to find out on my own. If one has a definite advantage over the other that would be something nice to know.

 

More barrel before the port/comp will give it more leverage to reduce muzzle rise. Less barrel before the port/comp will give the port/comp more pressure to use. I don't know which would win out.

 

. . . . How do ported barrels compare to compensators in preventing muzzle rise? Let's say you compare a ported G17 to a compensated G17 (all else being equal), which would be most effective?

Wow, what a complicated question! First, you should not attempt to prevent muzzle rise, you should work at learning how to manage it, instead. Remember:

RECOIL IS YOUR FRIEND!

On slow-fire or single shots, thin muzzle ports are pretty much worthless. On rapid-fire or multiple shots, just about any muzzle port will 'come into its own', so to speak, and perform well. A well-designed compensator tends to reduce recoil all of the time.

For a variety of different technical reasons, that I do NOT want to get into right now, barrel AND slide-ported Glock pistols are more of a disadvantage than an advantage; and I would never want to have to rely upon one in any sort of self-defense scenario.

Here's one of the muzzle-ported Glock pistols (a G19) that I've been carrying for the past 15 + years:



And here's what it can do (very quickly):

 

...
muzzle and slide-ported Glock pistols are more of a disadvantage than an advantage; and I would never want to have to rely upon one in any sort of self-defense scenario.

Here's one of the muzzle-ported Glock pistols (a G19) that I've been carrying for the past 15 + years:
...

If it's a net disadvantage, why have you been carrying one for 15+ years?

 

Comps are for competition, specifically USPSA Open (Major 9) Division which has a power floor requirement of 165, ie a 125 gr going over 1,340 fps which requires hand loading. Since there is no power floor in GSSF, why not just load as soft as possible and manage transitions instead of trying to get a comp to run right.

 

G21 And here's what it can do (very quickly): What where the split times on those shots? What shot timer do you use?

 

Mysterious double-post!

 

Snoop, you would notice a huge difference with a 24lb spring in competition. Roller coaster slide along with a dippy dot. Thing is a Glock USPSA Open Division Major 9x19 does not live that long anyway. It will crack the locking block long before frame battering is enough to matter. That's why you see almost no Open Glocks compared to STI's and other wide body 1911 variants, especially at Level 2 and higher matches. The 2020 Nationals Equipment Survey did not show any Open Glocks.

Typically speaking, 20lb and heavier are for .357SIG and 10mm hot loads. I have 20lb's in my G31's and 22lb's in my G20's. Even though you can put ISMI flat wound springs on the OEM RSA, they won't stay put, so I use SS RSA's.

 

Roller coaster slide along with a dippy dot. Thing is a Glock USPSA Open Division Major 9x19 does not live that long anyway. It will crack the locking block long before frame battering is enough to matter. That's why you see almost no Open Glocks compared to STI's and other wide body 1911 variants, especially at Level 2 and higher matches. The 2020 Nationals Equipment Survey did not show any Open Glocks.

For reasons why only Californians know, I can't have a fully capacity capable 2011. At best, Infinity has a roster pistol that would be a great limited platform, so that could be purchased, and then sent back for an Open build. Nighthawk I guess also will take a single stack rostered gun, and when sent back turned into a double stack. Both pathways still don't solve the magazine capacity challenge.

Or a private party transfer of someone that already has one in CA.

If Glock locking blocks are what I'm going to have to replace then that's pretty good. If all I have to do is inspect them and at signs of fatigue I just replace them, then again, that's pretty good. However, realistically, no one checks power factor at all but the big matches, and I'm not that guy that anyone cares about anyway.

What I don't want is to lose the $600 upper (welded compensator barrel slide combo).

This is my most realistic pathway to a fun Open Gun.

Below is a 24lb spring with a major load, yes the slide oscillates more than it should, but the slide/sight picture doesn't dip down.

 

Thanks for the input everyone.

 

I'm in SoCal and see plenty of full on STI's at local matches. Don't know where they get them from.

 

$$$$$ or various ways. I can think of many, but they are exceptions limited to one's connections, narrow opportunities around the few ways the system can be navigated.

When I used such a window for myself "Open Guns" were not on my radar. That window has since closed.