Linear Comp on my LC45

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GunnyGene

Hawkeye
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Got a CMMG comp yesterday, and tried it out today. Can't say it made any difference in noise, recoil, or anything else. But since it doesn't add any significant weight I'll leave it on. Makes the rifle look more tacticoolish tho so probably wouldn't be welcome in NYC, etc.
;)

comp2.jpg
 

NikA

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That's a linear compensator, and probably too short of one to make any real noise difference.

The following link is what CMMG used to put on their .45 ACP PCCs, looks like they discontinued it for something more TactiCool. If you're interested, I have one pulled off a new CMMG .45. Might have some other options as well. I think they're a bit silly so swap them for thread protectors or suppressor mounts.

 

GunnyGene

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That's a linear compensator, and probably too short of one to make any real noise difference.

The following link is what CMMG used to put on their .45 ACP PCCs, looks like they discontinued it for something more TactiCool. If you're interested, I have one pulled off a new CMMG .45. Might have some other options as well. I think they're a bit silly so swap them for thread protectors or suppressor mounts.

Thanks, but I'm not going to try out or buy something else for this. I might just take a dremel to the one I have and sharpen the points to turn it into a very short circular bayonet tho. ;)
 

9x19

Hunter
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.45 ACP doesn't have enough pressure to make comps effective... part of the reason .38 Super took over USPSA and IPSC comps way back in the late 70s, early 80s.
 

GunnyGene

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.45 ACP doesn't have enough pressure to make comps effective... part of the reason .38 Super took over USPSA and IPSC comps way back in the late 70s, early 80s.
Hickok45 got ahold of one a few days ago. Put a really long can on it, and said he'd be doing a review soon. Video here shows it and a few shots.

 
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Since the 45ACP is basically sub-sonic with most all ammo, it should(?) be easy to suppress. Keeping the bullet well below speed of sound is the big factor if you want quiet. Hickok's typical shooting area isn't a good place to 'test' a suppressor. The trees will reflect quite a bit of sound back to the shooter/recording device.
As far as the linear comp(blast forwarder) devices, the results I've seen are questionable. Something like a .223 or short barrel 6.5 Creedmoor are noticeably easier on the ears. I use them on my pickup/UTV rifles which are usually fired w/o ear pro in the field. A 22 or 9mm doesn't seem to be helped all that much by the 'wannabe sound suppressors' and basically only real benefit comes from extending barrel length.
 
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Got a CMMG comp yesterday, and tried it out today. Can't say it made any difference in noise, recoil, or anything else. But since it doesn't add any significant weight I'll leave it on. Makes the rifle look more tacticoolish tho so probably wouldn't be welcome in NYC, etc.
;)

View attachment 41036
Not all "Linear Comps" work the same. Several of mine while not "Hearing Safe" make a difference behind the gun. A 45acp carbine should almost be hearing safe anyway. Perfect for HD in confined spaces. Try the Kaw Valley or Wing Tactical versions
 
Last edited:

vlavalle

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Chandler, AZ
Since the 45ACP is basically sub-sonic with most all ammo, it should(?) be easy to suppress. Keeping the bullet well below speed of sound is the big factor if you want quiet. Hickok's typical shooting area isn't a good place to 'test' a suppressor. The trees will reflect quite a bit of sound back to the shooter/recording device.
As far as the linear comp(blast forwarder) devices, the results I've seen are questionable. Something like a .223 or short barrel 6.5 Creedmoor are noticeably easier on the ears. I use them on my pickup/UTV rifles which are usually fired w/o ear pro in the field. A 22 or 9mm doesn't seem to be helped all that much by the 'wannabe sound suppressors' and basically only real benefit comes from extending barrel length.
I shoot all kinds of .45 ACP rounds out of my .45LV Ruger Blackhawk, and speceral different rounds that are super sonic (above 750 mph = about ~1,100 fps. None of these are very loud until you get above .1200 fps. Of course, .45 LC is a totally different story.
 

joerockt

Bearcat
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Jun 15, 2024
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Michigan
Got a CMMG comp yesterday, and tried it out today. Can't say it made any difference in noise, recoil, or anything else. But since it doesn't add any significant weight I'll leave it on. Makes the rifle look more tacticoolish tho so probably wouldn't be welcome in NYC, etc.
;)

View attachment 41036
Hi so I got the same exact compensator but I'm finding that it's fitting tight about a quarter of the way. Did you experience the same thing?
 

Guv

Bearcat
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May 6, 2024
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Texas
That's the one thing that has kept me away from the PC9. I really don't have a use for such compactness.
My son and I did get an opportunity to sight it in with my Leupold 1.5-4 Hog scope
At 25 yds it just made a ragged hole and didn't seem to care if it was Remington 230FMJ, S&B 230HP or Fed 230HST +P.
Very, very happy with it, POI with +P is about 1/2" higher with hardly any noticeable increase in recoil.
Gonna be giving a big boar an Attitude Adjustment 😉
 

GunnyGene

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That's the one thing that has kept me away from the PC9. I really don't have a use for such compactness.
My son and I did get an opportunity to sight it in with my Leupold 1.5-4 Hog scope
At 25 yds it just made a ragged hole and didn't seem to care if it was Remington 230FMJ, S&B 230HP or Fed 230HST +P.
Very, very happy with it, POI with +P is about 1/2" higher with hardly any noticeable increase in recoil.
Gonna be giving a big boar an Attitude Adjustment 😉
You do know you can swap out the factory folding stock on the LC with most any other AR pattern butt stock, right?
 

Guv

Bearcat
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May 6, 2024
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Location
Texas
Yes, I am going to get a buffer tube adapter from Midwest. I already have a couple of AR stocks waiting for it.
 
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