MARSOC CQBR Block II Clone

Overview of my clone of a CQBR Block II, specifically one issued by MARSOC. Thanks for watching!
Somehow I always manage to forget significant details when recording these videos; there are several optics issued with CQBR Block II Rifles aside from the EoTech models mentioned. Other clone correct options include the Elcan SpacerDR 1X/4X (specifically the SU-230/PVS marked units in FDE, Gen 2 or 3), TA31 model ACOGs, and various Aimpoint models. Occasionally other optics are used as well, but these account for 99% of the optics seen on issued Block II rifles.
My insta: / inferior_rifles
Cave State Customs: / cavestatecustoms
The Armorer's Fix: / thearmorer’sfix
Thoroughbred Armament: / thoroughbred_armament

[@InferiorRifles]

Thanks everyone for watching! One quick edit; when I stated that the correct barrel profile for the CQBR is the Government profile, I did not mean to imply that there are no socom profile barrels in use on CQBR’s. There are definitely a number of MK18’s using cut-down socom barrels. What I meant to say is that the Gov’t profile is what is specified by Crane and (in my opinion) is more ideal.

[@BrandonLeeBrown]

The cut down barrels are standard M4 profile. The "replacement" barrels, mostly by FN, are factory 10.3" barrels in SOCOM profile. MARSOC was a late arrival joining SOCOM. The standard M4 profile barrels have had the front sight bases removed. The new, replacement SOCOM profile barrels never had front sight bases mounted on them. Knight's gave the USMC special pricing for the NT4 suppressors and sights, in exchange for fairly large contracts, wanting the USMC to use their products.

[@Hiddencomment007]

This is one of my favorite gun channels right now. You show some really iconic rifles

[@qrcmedia]

The picture still you had at 2:53 straight gave me chills. Fair winds Liam.. missing you always

[@CoryHobbs2178]

I'm not even super into clones but the attention to detail was good to listen to. I think the algo recommended your channel

[@DowntownDeuce2]

Cool channel, with original content and accurate information. The presenter speaks from experience, without being pretentious or just repeating second hand information

[@TheArmorersFix]

Awesome! Thanks for the shout outs. You’re killing it bro!

[@BeingRealSavage]

Ss2 v5 is more competitive rifle

[@negativeanalysis]

love the mk18 content, never gets old

[@Alex-pb1iy]

Marsoc also uses surefire rc1’s in fde and I’ve seen a few in black , Surefires are out there in use but NT4s are almost exclusively issued. So having a fde or back surefire would still be correct for this build.

[@AlexanderEddy]

Super sexy build! I really appreciate the attention to detail and the effort you went to to make it as clone correct as possible

[@CajunMarine33445]

I have a west coast SAM-R clone I build which was loads of fun and I cloned my M-4 service rifle from my time in the Corps.

[@WolfAnnihilatorX]

I’m not sure how I came across this channel but you caught my attention with the “Cave State Customs”. I’m in the Springfield area as well (I live in Rogersville). I dig the videos brother and the numerous builds! Definitely subscribing!

[@TheArmorersFix]

🍻

[@RandomNylonGuy]

Sexy rifle! My 2 cents: I think the CQD sling mount, especially the rear end plate is a Crane specific thing. it comes standard on Mk18 Mod0/18-1 built by crane. In fact the reference photos in the video 1:29 10:29 and 15:43 that do have CQD end plates are all NSWC mk18's. For the rest of the SOCOM SOPMODs it's mostly just regular M4 endplate or other aftermarket end plates. Again it's just my two censts, I'm not saying you are wrong (I use CQD on my own build as well lol) but in terms of cloning SOCOM issued SOPMOD2 CQBR it's probably more kosher to use standard M4 endplate.

[@InferiorRifles]

It depends on whether the CQBR was issued as just an upper, or as an “18-1” which was a complete rifle built by Crane. In short, if Crane provided the lower receiver then it would often come installed with a CQD end plate. If just an upper was delivered, they end user would utilize their M4A1 lower they had already been issued, meaning it would have a standard M4 end plate. You’re correct that this was typically the case with MARSOC rifles. Thanks for watching!

[@RandomNylonGuy]

@@InferiorRifles I’m only mentioning this because it’s titled MARSOC CQBR in which case they are not a part of NSWC. Btw I’m so jelly about that Taupe NT-4

[@Advance_Main]

Good review. A couple observations... The DD RIS II is designed for the 6 o'clock rail to easily detach for the mounting of the M203 (if you happen to have a cut down SOCOM barrel).Taking this panel off does not interfere with the structural integrity of the rail. Also B5 had a contract for the Gen 1 Enhanced SOPMOD stock. It was identical to the LMT version with the exception of the LMT branding on the lever and it came in a blue bag and was known to be very tight fitting.

[@InferiorRifles]

A standard M203 receiver is too long to mount to a MK18 RIS II. The front mounting bracket of the M203 extends past the handguard/barrel of the MK18, so there would be nothing to keep the launcher from simply sliding forward and off of the barrel. You need the longer M4A1 RIS II to mount an M203 receiver. The socom profile barrel does not change this; you can mount an M203 to a socom OR a Gov’t profile barrel anyway (assuming the barrel is long enough). Both Gen 1 sopmod stocks (LMT and B5) are correct and are issued. Mine is a B5.

[@DowntownDeuce2]

The cuts in the barrel are only there to allow the rear of the M203 receiver to slide in over the barrel, then rearward towards the barrel nut. They have nothing to do with mounting or an anchor point.

[@DowntownDeuce2]

What Inferior Rifles was trying to say is that the M203 receiver would slide forward off of the rail system as there is no forward anchor point, and that the rail is too short/ M203 receiver too long.

[@louispittman7367]

Is there a form we can fill out to get Dakota Meyer's permission to buy this carbine?

[@ALovelyBunchOfDragonballz]

Got my permission slip right here. 😁 *produces pocket Constitution*

[@joejoeseesingtons]

My fav clone ever

[@seanwhite304]

C.C. L119A2 is my dream Upper to clone . I've been drooling over that since I first saw it in 2015ish . One day I'll clone NSW RECCE. Colt MK18 MOD 0 CQBR is my all time favorite Clone Upper. I've had one in my collection for 10 plus years .

[@Goldenwithaleash]

Just found this channel and I’m really digging it.

[@easbreid9879]

I have a DD Mk18 upper on a Spikes lower, next clone i build will be a Mk12. The Mk18, Mk12, and what is referred to as "type A" rifles have a special place in my heart

[@jimmyvancleef3593]

Very well done. Nice choice to change the coating

[@jjdidnottiebuckle4791]

A chopped down socom profile barrel is indeed clone correct, there are decent amount of them in actual marsoc rifles. I have two example of complete uppers came out of marsoc armory and funny enough, the cqbr has a socom profile barrel and block 2 m4 has a m4 profile barrel.

[@7mmalltheway]

I have both DD Mk18 and M4 block 2 which come with DD’s CHF GOV profile barrel . I felt relieved after watching 9holes review of M4 colt socom barrel VS DD’ gov barrel accuracy comparison test. It seems like we no longer have stick with clone correct barrel choices.

[@boss350z5]

Cerakote C is air dry and the softest cerakote option. H is the most common and is baked on and the High heat version is E or the elite high temp version... great build.

[@wafflewrangler5028]

Really interesting to see the teardrop forward assist at 9:34. Think that was by operator preference or just the Marine Corps having them use what is available?

[@InferiorRifles]

Crane is known for re-using whatever parts they have available when building guns for SOCOM. That’s why you’ll also see MK12’s with teardrop forward assists and other random A1/A2 parts

[@xefitnop]

I used the same primary photo for my build. I couldn’t find the 600a, and I found a su231. Great gun.

[@williamflowers9435]

Cool channel!! Just subscribed. Shocked that KZbin actually gave me a useful recommendation for once

[@USMC_LAterZ]

Loving these videos. She's a beauty.

[@ryanpatton5937]

I really like that build . I just love mk18's and all of the cqbr rifles if i had the money i would build one everyway spec'ed out with all of the goodys just like our great military thanks for the info i enjoy videos like this

[@rogueconcepts7404]

You can barrel mount a 203 on these. You remove the bottom rail section and the forward rail mount is actually mounted to the flash hider. Level zero heroes had some pictures of a Raider running a mk18 that way👌🏻 Also Raider buddy currently is issued the surefire vampire lights, ngal, and two new lpvos. One from leupold and then the atacr👌🏻 those are able to be put on either their mk18 or block ll

[@InferiorRifles]

A standard m203 receiver is too long to be mounted on a cqbr, as the locking tabs on the upper part of the handguard are located too far back to reach the screw holes on the M203. Using a barrel clamp around a standard flash hider would not work either, as the launcher would simply slide forward and off the gun since nothing would limit its forward travel. This is why the GL/SSC exists, because it provides the extra length needed to mount a standard M203 using the locking tabs on the rail itself. Barrel mounting an M203 to a CQBR would require either a redesigned flash hider/QD mount, or a shorter M203 receiver (all of which are possible). But none of those are issued parts, hence why you never see M203’s on issued CQBR’s.

[@rogueconcepts7404]

@@InferiorRifles it could of been a mod o. This was a probably 2011/12 time line. But they was running a barrel mounted 203 on his 10.3 gun whether it was a mod o or 1 I can’t remember. It was a shortened version of the 203 though. I was never issued the shorter version so can’t personally say anything about it

[@deejay1534]

@@rogueconcepts7404 the Mk18 DD rail is not designed to mount an M203 that way. The whole point of the rail was to allow the M203 to be mounted and still free-float the barrel. The model you were looking undoubtedly an original CQBR upper that still used the KAC RAS handguard, which is designed to have the bottom rail be removed to mount a 203.

[@deejay1534]

@@rogueconcepts7404 also, the only part of a 203 you can shorten is the actual grenade tube/barrel. The mounting system remains the same length. I've used them before we switched to the HK M320s.

[@williamflowers9435]

Good Luck finding a AN/PEQ16a/b. I hope you got a pretty penny for yours! Even finding airsoft replicas is near impossible (no, I wouldn’t put that on a real rifle but since they make almost all of the BLOCK I & II accessories my son’s made a number of airsoft rifles with all the correct extras)

[@teabuh]

Do they use a colt 4 Position buffer tube?

[@jerrymandarren]

Could you also do the mid length or carbine A2 that protrudes through the open part of the rail.

[@blackbushido]

Hello. Excellent an very informative video!! This question is mainly because I saw the picture of the Elcan with rmr mounted. I was just wondering if it were possible to mount a Aimpoint rds on one?? Thank you and thank you for your timely response an apologies this was also on a M4A1 14.5?? Thank you again an no disrespect towards your MK18

[@ultraspank8479]

Good video man. Great content sweet build

[@T20-c8f]

Great video man! I really wish I had watched something like this when I built my pistol. I just wanted a premium 11.5 and I didn’t know much about hand guards at the time. I knew Mlock was starting to really become the shib (it was 4 years ago) and I went with a BCM MCMR 10” rail and it sucks. I shoulda Gone quad rail. It gets so dang hot under the gasblock I put about 60 bucks in railscales aluminum and polymer to help my hands

[@bracoop2]

I think quad rails are terrible. They’re usually compared to cheese graiters haha. I would take a nice slim m-lok rail over another quad rail any day. But that’s just my opinion!

[@Alex-pb1iy]

I’ve got a DD RIS II and SLR Mlok rail. They both have their merits. Piece of advice, if you get mlok make you you get a full 1913 rail at he 12o clock position. I kinda prefer the Ris over Mlok because it’s practically welded on the upper and I also like the fact that accessories are faster to take off, as opposed to needing an Allen wrench and loctite. Plus, those screws and nuts are tiny (that’s what she said). It’s a good idea to carry a few spares. Yes 1913 rails are old school, but I like the QD option, solid lockup and less parts to lose and carry. Yes their heavier, but with that comes durability.

[@ALovelyBunchOfDragonballz]

I went with a BCM QRF due to a particular gas block I picked.

[@mostlycloudy3069]

the most cloned rife because everyone, their mom, Santa, the kids next door, the showgirls, Mrs. Clause, LGBTQ, and whoever else I didn't mention wants one.

[@marshalllapenta7656]

Is there a big difference between the knights armament, and the sure fire can?

[@Cello217]

Geat video bro, love the rifle.

[@BlueDevilBrew]

The color on your RIS II is 🤌

[@blue_ridge_shooting762]

Dude, how dont you have 100k+ subs?

[@Pishadoo42]

Thoroughbred Armament stocks some great clone stuff Edit: beat me to it 😂

[@elitecombatfitnesscentral6170]

What rifle and setup is that on your thumbnail?

[@Selig2236]

Have you thought about doing an M16A5 build? It’s the proposed M16 upgrade which used the VLTOR A5 system and a different rail I think to the A4. It never got adopted due to the Marines switching to the M4A1

[@SD-fg8rb]

how did you get the black sn number sticker?

[@InferiorRifles]

Carolina Laser Works

[@Ceej3]

We’re any cqbrs issued with a black ris 2 rail? Or were they all that flat dark brown

[@InferiorRifles]

Only FDE.

[@jay-t1030]

AK GUYS: *Laughs in Alpha AK*

[@Chris05STi1982]

Where can one find a Colt lower like that one. That seems to be the biggest issue I am running into with my clone builds.

[@InferiorRifles]

Roll-marked Colt receivers are no longer sold, so you’ll have to track down a used one more than likely. While “Colt” still sells lowers, they are laser-engraved and not built to the same standards as prior.

[@ace1gun]

where to find the KAC M110 grip

[@andrewpinheiro5232]

Awesome build man just finishing my m4 block 2 love the pictures of black eotechs and kac front sight now next time someone tells me my optics and buis is wrong color I can tell them to suck it I do want a fde eotech but already had black and my front sight got great deal for front and back kac sights from shark arms

[@Blackcloud_Garage]

What is a good source for the UID labels?

[@InferiorRifles]

Carolina laser works

[@Blackcloud_Garage]

@@InferiorRifles Thanks

[@Pishadoo42]

Do you see anybody using the ris3 in the future?

[@christo_reese]

Nice build

[@sallyann8971]

Aren't colts ambi selector made with one leg

[@InferiorRifles]

If the selector only had one leg, it wouldn’t be ambi.

[@sallyann8971]

@@InferiorRifles no not true. I own three colt rifle and the all have a colt marked selector with one leg. But the deten slots are ambi so you remove the selector and install it on the left or right side for ambi usages

[@sallyann8971]

@@InferiorRifles same concept as Glock mag release are ambi usages

[@InferiorRifles]

@@sallyann8971 Google “Colt ambi selector”. Not the same thing as Colts standard reversible selector lol

[@sallyann8971]

@@InferiorRifles I'm a big boy and I was wrong. Now I'm shopping

[@gavinsloma]

Any one know what the wall set up is

[@chandlermathis5894]

Mk12 mod 1 for my first my 2nd was an m16a2 third m4a1 block 1 I'm thinking next may be mk18 mod 0

[@jonathonking5985]

What a build like that cost? Very nice rifle

[@roypaulcarter4654]

I miss Liam he was a very Quit but very good guy. I miss Andy Tom Josh and all the guys men way better then me.

[@andyrey8536]

Solid video

[@gtcam723]

Don’t think I’ll get too crazy on the clone kick. I’ll borrow some elements but will probably use some more up to date commercial stuff. Radian Talon ambi, Surefire M600 dual fuel, etc

[@CartnFart76]

This was fun

[@crunchyknees3622]

Easiest way to tell something is a clone and not the real deal. How clean it is. Something I've noticed. Every mk18 I've seen has some where and tear and usually some remnants of spray paint

[@InferiorRifles]

I would’ve thought that the title of the video would be the easiest way to tell.

[@oh033]

😂

[@iansimms3568]

Some of them have fn lowers and uppers

[@slopothacrop]

B5 < CTR

[@recycled_fishstick]

that was a good video

[@The10thManRules]

Gross! That 2$ A2 grip is like Honda Civic tires on a Dodge Charger. But the removal of the front sight is much needed.

[@jbdilig]

Build a Noveske Navy and a CAG 416 boss

[@deejay1534]

Noveske DEVGRU guns are just Noveske N4s in FDE with modifications done by the individual users lol. You can just buy the whole rifle and then change out the small things

[@joejoeseesingtons]

Dope

[@MikeHunt-rw4gf]

Algorithm.