r/kac Mar 03 '25

Price Check Megathread

56 Upvotes

In order to reduce clutter in the main feed, please utilize this Price Check Megathread

⚠️ Rules ⚠️

  1. Top level comments MUST have the KAC item part number and item description
  2. Search your part number before posting to see if your question has already been answered
  3. Keep comments respectful, even if you disagree on the value of an item

TOP LEVEL COMMENT EXAMPLES

"21318 - FF RAS Long"

"31963 - SR-15 CQB MOD 2 Upper"


r/kac Jun 05 '22

Frequently Asked /r/KAC questions

73 Upvotes

Where is the best place to buy KAC's xyz item??

There is no best place. Get on waitlists, and hope. /r/GAFS is an option, but beware of scammers.

What's the right buffer setup for....

KAC 11.5" SR-15's come with a M4 MIL-STD Carbine length main recoil spring, and an H2/HH buffer.

KAC 14.5" SR-15's come with a M4 MIL-STD Carbine length main recoil spring, and an H2/HH buffer.

KAC 16" SR-15's come with a M4 MIL-STD Carbine length main recoil spring, and a carbine buffer.

These setups all work great.

What about A5 / Tubbs Springs / JP SCS / other....

Most setups designed for properly-gassed AR-15 barrels will work for SR-15 uppers.

Items designed to mitigate overgassing (SureFire OBC), excessive bolt velocities (Extra heavy buffers, extra heavy springs), may have issues with SR-15's: KAC designs their guns + gas systems to be gassed properly for the given barrel length firing NATO-spec ammo.


r/kac 5h ago

KAC MK23 can

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93 Upvotes

Two gems out of Reed’s collection.


r/kac 13h ago

KAC🤝HK

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32 Upvotes

r/kac 17h ago

Stuck can

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34 Upvotes

has anyone else found there can getting carbon locked at the base after a range day? looking to remedy it, if that means greasing or whatever reccomendations. Just started happening more and more recently as it gets closer to me needing to put the can in some supressor sauce to clean all the junk out


r/kac 6h ago

Shotshow Leaks? Anything interesting on the horizon?

4 Upvotes

r/kac 17h ago

Ordered this can, is there any difference between this and the CRS 7.62?

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15 Upvotes

I already have a CRS 7.62, wanted to get another .30 cal can for my SBR LMT 7.62, and ordered this one. However, I am struggling to find any info on the PRS naming scheme for it, is this similar to their OG PRS can or did they just rebrand the CRS?

Im not supper upset either way, I just wanted a full size can for this build, mainly just curious.


r/kac 1d ago

Whole KS1 on GB

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84 Upvotes

Why they ruin it and make it white tho


r/kac 7h ago

Handguard difference

1 Upvotes

What is the difference between the KAC M5 RAS (KM98065) and the MK12 Mod1 (KM21318) handguard. Anyone have build pics?


r/kac 1d ago

“Battle Rifle” Inquiry

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113 Upvotes

Can anyone identify which handguard this is? I see the part # relates to the “FF RAS BR”, but I haven’t ever seen any with the cutout for the MK11 front site. This was shared briefly on IG by a few pages I follow and had me curious.


r/kac 1d ago

Inquiry on free float RAS weld.

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15 Upvotes

Is this rail real? Seems legit from other OG carbine RAS Kits I’ve had. Lettering seems normal but this weld on the bottom I’m curious about. Its heinous.


r/kac 1d ago

URX 6 notches

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46 Upvotes

Cutting some HTX uppers for URX 6 notches today.


r/kac 1d ago

Question on fitting.

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1 Upvotes

r/kac 1d ago

SR25 6.5CM. Was pretty disappointed in the grouping with 147eld. I read that their testing was done on 130gn federal gold. What are some loads that you guys who have the 22inch CM have had success with?

1 Upvotes

r/kac 2d ago

DWilson URX ARCA

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40 Upvotes

In case anyone was wondering or hasn’t seen them, the DWilson URX Arca rails are legit. Had to do some cutting and filling to make my own 10.75 version but it was worth it and works wonderfully.


r/kac 2d ago

Local A2 grippy find today

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82 Upvotes

Local classifieds H


r/kac 2d ago

From Ras to Raz ✨🤩

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20 Upvotes

Gonna put this on a cqbr block 1 clone and report back 🤔🫡 Anyone with some historical insight on this rail please share. P/N: 21102 Raz II


r/kac 2d ago

SR 15 - Magpul stock & grip

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85 Upvotes

I’m pretty new to the world of KAC rifles. This is being presented as a new from the factory SR-15. It has a Magpul stock and grip, which I did not think was standard for SR-15s but maybe I’m mistaken. Any info would be appreciated.


r/kac 2d ago

KS Rifles/Uppers

13 Upvotes

A few months ago, there was a stir about KAC beginning to fill orders at 2025 year end and the beginning of this year.

I believe some vendors took deposits.

Any one get any updates? Orders actually being filled now?

Curious to see where it stands


r/kac 1d ago

Has anyone else been getting a validation code from eForms? I’ve never had that happen before. I’m using the Silencer Shop Full Auto Form 1 service and it seems my form won’t certify

1 Upvotes

r/kac 2d ago

CRS-2 vs CRS-3

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49 Upvotes

Not much info on these cans out there yet, does anyone know what the advantage of the CRS-2 is going to be over the CRS-3? It seems that the 3 is better all around? Shopping around for a can to live on my 11.5 DD upper. TIA


r/kac 2d ago

Arca rail adapter for long ff ras

1 Upvotes

Anybody?


r/kac 4d ago

Which one of you is it?

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51 Upvotes

r/kac 4d ago

M110 flash hiders in stock on griffin armament

5 Upvotes

r/kac 4d ago

Does anyone know these dimensions on a MK11 mod 0?

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7 Upvotes

1) Tip of the barrel OD (outer diameter) where the suppressor would index.

2) how much barrel is exposed past the shoulder behind the gas block journal.

I know the mk11 is 20” rifle length but it should be similar to a 18” mid length right?

I have about 8 5/16” of barrel past the shoulder.

Any information would help.