Fightlite AR-compatible lower + CMMG rimfire conversion

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Nov 12, 2018
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People's Republic of California, Central Valley
I believe the Fightlite (formerly Ares) Sport Configurable Rifle was introduced around 2014, both as a workaround for some restrictive jurisdictions and an alternative for shooters wanting a semiauto sporting and defense rifle with less militant styling. There were issues with a heavy trigger and lack of a last round hold-open on early versions of the SCR, but those were addressed pretty early in production. The manufacturer changed names from Ares to Fightlight, and the buttstock styling also underwent modification. However improved though, the real issue with the SCR was that availability seemed nonexistent for years.

I had been kicking ideas around for acquiring a utility semiautomatic rifle with non-pistol gripped stock, and this made the SCR a compelling third choice to the M1 Carbine and the Mini-14. The use of STANAG 556 magazines was a particular attraction, so I decided to keep an eye out for one. Finally last November the website went from 'out of stock' to 'add to cart' on the SCR lower I was interested in. The lower goes for $750 at present, and with the cost of my chosen upper the total came to slightly less than the current MSRP on a Mini-14.

https://fightlite.com/scr-lwr-rp

My initial build was configured more as black rifle than a sporter because I found a fully-configured 5.56 cheesegrater upper without much fuss. This upper featured a 16" barrel with a threaded muzzle; fitting anything that might conceivably reduce the flash signature to the muzzle in California is problematic and the barrel is too short to cut back the threaded section, so I cut the front off a regular birdcage flash hider to serve as a thread protector. If anyone is curious what a gelded birdcage looks like, here's a closeup:

FlashHiderNeutered.jpg

I also temporarily exchanged the laminated factory buttstock with a Choate plastic job intended for the Remington 1100, which will fit with very minor modification. The scope is a Weaver V1-4x in Warne QD rings.

SCRScoped.jpg

The result for now is more functional than handsome to my eye, but I can live with it. At some later date I'll get a second upper that I can fit with a laminated wood handguard that matches the factory buttstock. Maybe something along these lines (note: these are photos of an early model sans bolt holdopen)

FLSCRWood.jpg FLSCRWood02.jpg

Until I have the opportunity to take it to the rifle range, I decided to install a CMMG rimfire adapter so I could use it at my local indoor pistol club. Ordinarily the CMMG unit is a drop-in replacement for the BCG. Because the Fightlite uses a relatively small-diameter angled buffer system, the squared-off rear plate on the CMMG unit does not allow the upper to fully close on the lower at the rear without a little extra contouring with a file.

Contoured22Conversion01.jpg

The CMMG unit gave 100% reliable function during my first 60-round range session. I used a Black Dog Machine magazine with steel feed lips, which is much shorter than the CMMG mags and wobbles less in the SCR's magwell.



This rifle isn't exactly my usual cuppa, but I have to admit that it was fun to shoot and so far I am glad that I bought it.

BTW, you'll notice in the video that the lower-mounted scope makes access to the charging handle pretty cramped. Not a problem with some other sighting systems, such as iron sights or a forward-mounted scope or red dot.
 
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Man, that's nice. The only thing that gives me pause is the price tag. I'm gonna look into it a bit more for a 5.56 build. That would make for a slick carrying and handling ARish rig. If it works the way I'm seeing it in my head, it would be everything the mini 14 is, only with accuracy and mags that work.

As for .22 mags, check out righttobear.com and do a search for "catch22" mag adapters. There are two models. I suspect that you would need to use the stick on mag adapters. They allow you to run s&w m&p22 mags. They are easier to load and can be found dirt cheap. Often around $12 on sale at places like joebob's. I found black dog mags to be expensive and not so easy to load.

How's the trigger on that rig? Any cross compatibility suitable for upgrades?
 
Oh, man. I am now so regretting opening this thread. There is little info regarding the materials. Is it made of 7075 or 6061? Is it made of a forging? Man, I'm really going to look at this a bit more.
 
Man, that's nice. The only thing that gives me pause is the price tag. I'm gonna look into it a bit more for a 5.56 build. That would make for a slick carrying and handling ARish rig. If it works the way I'm seeing it in my head, it would be everything the mini 14 is, only with accuracy and mags that work.

As for .22 mags, check out righttobear.com and do a search for "catch22" mag adapters. There are two models. I suspect that you would need to use the stick on mag adapters. They allow you to run s&w m&p22 mags. They are easier to load and can be found dirt cheap. Often around $12 on sale at places like joebob's. I found black dog mags to be expensive and not so easy to load.

How's the trigger on that rig? Any cross compatibility suitable for upgrades?


Thanks for the tip on the mag catch -- I have an M&P as well, so that's worth following up, though I found my BDM mag quite friendly. The steel feed lips are a pretty nice feature.

The trigger geometry is non-AR -- in fact, the Fightlite uses a cross-bolt trigger safety because there isn't room for a more typical safety placement. The trigger seems OK, in that I didn't particularly notice it one way or the other as I was shooting. Maybe not DMR quality, but I can live with it -- I'm used to the two-stage triggers on old milsurps so I'm not the person to ask.

Also the bolt carrier is proprietary and is included with the lower. It uses a hinged tail to connect to the angled buffer in the buttstock. That buffer is also non-standard. However, the bolt and the rest of the upper are bog stock. One quirk I discovered is that it is easier to retract both pins when removing and replacing the upper, because the BC's tail sticks out slightly -- position the upper, check that the bolt retracts and then reinsert both pins. The tail means it doesn't really hinge together at the back like a typical AR. Not hard to do, but different.

PCC conversions or other options that require a different bolt carrier probably won't work due to the buffer geometry, but simpler stuff like .300 AAC shouldn't present too many issues. This guy has his SCR fitted with a 7.62x39 upper:



FWIW, I will say the FLs trigger beats the Swedish military rollingblock's, which is my current standard for a really stiff, heavy trigger!
 
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Oh, man. I am now so regretting opening this thread. There is little info regarding the materials. Is it made of 7075 or 6061? Is it made of a forging? Man, I'm really going to look at this a bit more.

Per website, 7075-T6 forging.

I ordered and paid for my lower directly at the website and had it shipped to my LGS, who sent them the necessary FFL info. The process went smoothly for me.
 
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I must have missed that part about the forging. I was going through pretty quickly.

I am very interested in this rig and appreciate your bringing it to our attention. I might actually get to have my mini and have it shoot good too.
 
What prevents them from having a good trigger? Is the change to a cross bolt enough that it changes an AR style trigger workings enough to cause a poorer trigger than expected with AR’s?
 
The trigger is more like a Remington 870 than an AR by design. I really wanted one of these lowers when they first came out. Even built a 458 socom upper to go on it, but couldn't get one. Now that they are available I'd love one for a big bore brush gun in 350 legend or bigger. A 358 yeti comes to mind...
 
The trigger is more like a Remington 870 than an AR by design. I really wanted one of these lowers when they first came out. Even built a 458 socom upper to go on it, but couldn't get one. Now that they are available I'd love one for a big bore brush gun in 350 legend or bigger. A 358 yeti comes to mind...

Maybe a call or email to Fightlite could give you a better idea on what has or hasn't worked so far: https://fightlite.com/contact-us
 
Maybe a call or email to Fightlite could give you a better idea on what has or hasn't worked so far: https://fightlite.com/contact-us
The bolt carrier front half is the same as a standard AR-15, so any ar standard bolt will work. Talked to a guy who built a458 socom on the fightlite lower with great success. Just seems like a faster handling semi auto than the ar pattern rifles. Perfect for a brush gun!
 
Would love to see someone come up with a cheaper option for a 'sporting' lower like this for dedicated AR rimfire uppers. No buffer system would be needed. I toyed with the idea of buying a Fightlite but eventually bought two Ruger bolt action AR mag capable rifles for what one Fightlite would cost.
But as OP said, compared to the cost of a MINI 14, not bad.
I like it.
 
Would love to see someone come up with a cheaper option for a 'sporting' lower like this for dedicated AR rimfire uppers. No buffer system would be needed.

I was actually thinking about a dedicated .22 LR upper, but since I already own a M&P 15-22 I soon switched to the related problem of trying to find a dedicated .22 WMR upper. The one I found seems to require the conventional buffer tube for its dedicated buffer and spring. Has anybody else used one of these?

https://www.bearcreekarsenal.com/22...h-gas-system-15-new-mlok-sch-gen-2-upper.html
 
I was actually thinking about a dedicated .22 LR upper, but since I already own a M&P 15-22 I soon switched to the related problem of trying to find a dedicated .22 WMR upper. The one I found seems to require the conventional buffer tube for its dedicated buffer and spring. Has anybody else used one of these?

https://www.bearcreekarsenal.com/22...h-gas-system-15-new-mlok-sch-gen-2-upper.html
I've not bought one yet but do own a 6.5Grendel upper made by BCA and it's one of my best bargains.
Looks good, shoots good, and was $40 cheaper than a comperable PSA upper.
I've been following some chats on Bear Creek's new rimfire AR uppers. The .22lr had issues but seems BCA made em all right. The ,22wmr uppers seemed to have a lower failure rate. I'm assuming it's a modified Nordic system like they use on their .22lr upper.
I run a RTB 16" .22lr AR upper and have no complaints, but it costs twice what a BCA could be had for.
I'm really tempted by their ,22wmr upper since I shoot a lot of ,22wmr in other pistols and rifles. Reports seem to be good with the Black Dog Machine .22wmr magazines so you're not stuck with a system using a proprietary mag. If BCA stops making wmr uppers Black Dog will still be churning out mags.
The steel lipped BDM mags are my favorite.
 
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