Let’s talk Knights

aslrookie

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Mar 19, 2017
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I purchased a KAC stripped lower today. It came with their 2 stage trigger and trigger guard. I want a complete Knights 11.5” SBR. Where is a good place to source KAC parts? I’ve looked around online and haven’t found much. It would be nice to just buy a 11.5” complete upper, but can’t find any.

Also, I’d like to get an SR25. I need a 22” barrel or longer in order for it to be compatible with my reflex suppressor. Does anyone have experience with swapping barrels? Is it just like any other AR pattern? How does it perform with a different barrel? Is the gas system all screwed up?
 
I purchased a KAC stripped lower today. It came with their 2 stage trigger and trigger guard. I want a complete Knights 11.5” SBR. Where is a good place to source KAC parts? I’ve looked around online and haven’t found much. It would be nice to just buy a 11.5” complete upper, but can’t find any.

Also, I’d like to get an SR25. I need a 22” barrel or longer in order for it to be compatible with my reflex suppressor. Does anyone have experience with swapping barrels? Is it just like any other AR pattern? How does it perform with a different barrel? Is the gas system all screwed up?

Right now there is a shortage of 11.5” uppers. They are almost nonexistent. Try Brownells and Operation parts.
AR-15.com EE is also a decent source.

On the SR-25, your not going to get a 22” barrel. At least not until they finally release the 6.5 CM uppers. 20” is your longest choice. Depending on which reflex you are running you may still be able to use it on a 20”. The tough part will be finding a mount. KAC threads their barrels 3/4”-24.

Gas system is different.
How it would shoot with a different barrel is dependent on barrel and smith just like any other firearm.
Your going to be spending a lot of money to change out a barrel. $3500 for upper and a few hundred for a barrel that probably won’t shoot any better.

Buy the KAC and shoot it how it is or buy something else. That’s your best options.
 
To echo 87stang: KAC barrels are absolutely money. They are cut rifled, 5 R match barrels. You aren’t going to outshoot one with too many aftermarket barrels. ALSO, to make an aftermarket barrel work would be an absolute PIA. The gas port/gas block is held on very different. The gas block is held in place by a spanner nut that tightens against the block, thus providing a 360* seal. Also, the gas tube is screwed onto the gas block. Very similar to how a brake line in a vehicle works. The system is amazing, works great, but is not something the aftermarket would likely be able to copy.
Also, KAC SR-25’s come in carbine’s or rifles. 14.5”, 16” and 20”. Many folks like the 16”, and I’m told it outsells the other two. In a .308, 16” is all you need to get good powder burn.
My KAC SR-25’s are both sub minute carbine’s. However, I will admit I have to really bear down and watch my consistency. If I bobble at all, 1.5 moa is the norm. I admit, .308 gassers are tough for ME to shoot absolutely perfect. My 6.5CM are easier no doubt.

If you’re not looking for exactly what the SR-25 offers, maybe look at a LMT, or a Seekins.
I just don’t see the SR-25 being adapted to what you’re looking for.
 
Well maybe I’ll just get the Knights suppressor too. I just hate the thought of waiting a year for a $1500 can plus $200 stamp to get approved. My only 30cal can is a reflex and 5/8 thread.

I have a cheap form 1 30cal that I used on a 300blk but that’s not going on a KAC.
 
I purchased a KAC stripped lower today. It came with their 2 stage trigger and trigger guard. I want a complete Knights 11.5” SBR. Where is a good place to source KAC parts? I’ve looked around online and haven’t found much. It would be nice to just buy a 11.5” complete upper, but can’t find any.

Also, I’d like to get an SR25. I need a 22” barrel or longer in order for it to be compatible with my reflex suppressor. Does anyone have experience with swapping barrels? Is it just like any other AR pattern? How does it perform with a different barrel? Is the gas system all screwed up?

Well hello there my newfound non-poor friend.

For the 11.5 you have two options in the SR15 CQB and SR16 uppers. Unless you can find either in stock anywhere and/or not at 150% retail, the best place I've found where they come up regulary is in the ARF EE. Apparently a lot of people buy them, post pictures of their KAC gun to get some sort of street cred,stare at them for a few months and then can't get themselves to actually take it outside and shoot it because its so sexy and expensive. By that time they've already rationalized that they could get 13 PSA kits and an entire shipping container of Hexmags for the same price as their KAC upper.

If you know what to look for and what questions to ask, I wouldn't shy away from ones that even had <500 rounds on it because you'll never notice the difference.

It's a huge bonus if it has a MAMS on it; if not, get one. It turns the 5.56 into 22LR recoil and allows you to put a KAC suppressor on it as well as any carbine you have that you put a MAMS on.

My 11.5 is a full KAC gun, Magpul STR stock, HK V2 grip, KAC SR25 riser, EoTech XPs3. The riser (hard to find, can only find it in the secondary market) is the perfect height for a CQB gun to be able to bring the EoTech up into your line of sight from a low ready much more naturally as well as allows the use of nightvision without running the NV unit into the rear of the rail. Either way for the CQB, although I don't love EoTech, I'd suggest an Eotech + riser setup for it.

For a SR16 I'd email around and see if they have them in stock or can get them from a few places. There are some on ARF but they are way overpriced for the most part.




For the SR25, you don't want a super long barrel on it as ballistically you've hit the diminishing returns threshold way before then, and the gun would be a boat anchor from the front. While I love the KAC 5.56 suppressor, I've always procrastinated on the 7.62 version for my SR25s because of the fact they are not hearing safe and then add forward weight. The rule of thrmub with KAC guns, especially the KAC large frames is that you don't add any non-KAC parts to it because you never know if it'll work due to the variants of AR10/large frame parts.

For a SR25 I'd look at this: https://lockedloaded.com/product/kac-sr-25-apc-16-med-urx4-mlok#
 
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Well hello there my newfound non-poor friend.

For the 11.5 you have two options in the SR15 CQB and SR16 uppers. Unless you can find either in stock anywhere and/or not at 150% retail, the best place I've found where they come up regulary is in the ARF EE. Apparently a lot of people buy them, post pictures of their KAC gun to get some sort of street cred,stare at them for a few months and then can't get themselves to actually take it outside and shoot it because its so sexy and expensive. By that time they've already rationalized that they could get 13 PSA kits and an entire shipping container of Hexmags for the same price as their KAC upper.

If you know what to look for and what questions to ask, I wouldn't shy away from ones that even had <500 rounds on it because you'll never notice the difference.

It's a huge bonus if it has a MAMS on it; if not, get one. It turns the 5.56 into 22LR recoil and allows you to put a KAC suppressor on it as well as any carbine you have that you put a MAMS on.

My 11.5 is a full KAC gun, Magpul STR stock, HK V2 grip, KAC SR25 riser, EoTech XPs3. The riser (hard to find, can only find it in the secondary market) is the perfect height for a CQB gun to be able to bring the EoTech up into your line of sight from a low ready much more naturally as well as allows the use of nightvision without running the NV unit into the rear of the rail. Either way for the CQB, although I don't love EoTech, I'd suggest an Eotech + riser setup for it.

For the SR25, you don't want a super long barrel on it as ballistically you've hit the diminishing returns threshold way before then, and the gun would be a boat anchor from the front. While I love the KAC 5.56 suppressor, I've always procrastinated on the 7.62 version for my SR25s because of the fact they are not hearing safe and then add forward weight. The rule of thrmub with KAC guns, especially the KAC large frames is that you don't add any non-KAC parts to it because you never know if it'll work due to the variants of AR10/large frame parts.

For a SR25 I'd look at this: https://lockedloaded.com/product/kac-sr-25-apc-16-med-urx4-mlok#
His KAC is also pink because gay.
 
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Well hello there my newfound non-poor friend.

For the 11.5 you have two options in the SR15 CQB and SR16 uppers. Unless you can find either in stock anywhere and/or not at 150% retail, the best place I've found where they come up regulary is in the ARF EE. Apparently a lot of people buy them, post pictures of their KAC gun to get some sort of street cred,stare at them for a few months and then can't get themselves to actually take it outside and shoot it because its so sexy and expensive. By that time they've already rationalized that they could get 13 PSA kits and an entire shipping container of Hexmags for the same price as their KAC upper.

If you know what to look for and what questions to ask, I wouldn't shy away from ones that even had <500 rounds on it because you'll never notice the difference.

It's a huge bonus if it has a MAMS on it; if not, get one. It turns the 5.56 into 22LR recoil and allows you to put a KAC suppressor on it as well as any carbine you have that you put a MAMS on.

My 11.5 is a full KAC gun, Magpul STR stock, HK V2 grip, KAC SR25 riser, EoTech XPs3. The riser (hard to find, can only find it in the secondary market) is the perfect height for a CQB gun to be able to bring the EoTech up into your line of sight from a low ready much more naturally as well as allows the use of nightvision without running the NV unit into the rear of the rail. Either way for the CQB, although I don't love EoTech, I'd suggest an Eotech + riser setup for it.

For a SR16 I'd email around and see if they have them in stock or can get them from a few places. There are some on ARF but they are way overpriced for the most part.




For the SR25, you don't want a super long barrel on it as ballistically you've hit the diminishing returns threshold way before then, and the gun would be a boat anchor from the front. While I love the KAC 5.56 suppressor, I've always procrastinated on the 7.62 version for my SR25s because of the fact they are not hearing safe and then add forward weight. The rule of thrmub with KAC guns, especially the KAC large frames is that you don't add any non-KAC parts to it because you never know if it'll work due to the variants of AR10/large frame parts.

For a SR25 I'd look at this: https://lockedloaded.com/product/kac-sr-25-apc-16-med-urx4-mlok#


I have a griffin Recce 5 suppressor that I planned on putting on the 11.5" KAC upper. My SiCo Saker 556 is on my DD MK18 wannabe SBR. AMG instead of EoTech, streamlight 1,000 lumen light instead of surefire, and 12.5" noveske barrel instead of the overgassed 10.3" DD barrel and SiCo saker instead of a surefire can.

I was also looking at the LWRC MKII 22" 6.5CM rifle as well. It's long enough to use with my reflex can and it's $1k cheaper than the SR25. LWRC has a very good reputation as well, but I've been on this crave for KAC stuff. I just like the idea of having each gun with it's own suppressor.

Competing in precision rifle matches is fun, but I don't care for 25lbs rifles with light triggers and 20 support bags. The SR25 would be used for hunting, target shooting, and matches.
 
This is incorrect. KAC has been selling complete SR-15 ambi lowers for years. Hell I’ve got a few with qd flush cups in the receiver. They quit making those probably 5-7 years ago.



I saw a complete lower at Brownells and my first thought was they put together KAC stripped lower with KAC parts. Then I saw a bunch of them at other places which I don't recall ever seeing. So you're saying KAC is building them and sending them to vendors?

 
I saw a complete lower at Brownells and my first thought was they put together KAC stripped lower with KAC parts. Then I saw a bunch of them at other places which I don't recall ever seeing. So you're saying KAC is building them and sending them to vendors?


Yes, KAC has been selling complete ambi lowers for years. The stripped lowers just started as of about 2017. They are different lowers. The stripped lowers are just milspec lowers with a KAC roll mark. The ambi lowers are altogether different. Ambidextrous controls, KAC two stage trigger, SOPMOD stock. Same lower that comes on complete guns. It’s a good value IMHO.


Is there a dedicated KAC picture thread of folk’s set up on the forum?

Not really on this forum but in the industry section of AR15.com there is a whole forum for KAC. A lot of the guys from KAC are there. Good pic threads for SR-25 and SR-15. Lots of good info there without the usual arfcom fuckery.
 
Since I can’t find any KAC 11.5” uppers right now, I’ve been looking at optic options. This is my “end of the world” gun, so the optic needs to be durable.

It will be used for day and night under nods. Leaning towards LPVO with RMR on top. My considerations are Mk6 1-6x, gen 2 E 1-6x, 4x32 acog, and NXS 1-8x.

I would’ve posted this in the optics section but I like the idea of it being on a KAC staying in this thread.