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cqbr
The Close Quarter Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 Carbine, developed by the US Navy. The CQBR features a barrel 10.3 in (262 mm) in length, similar to the Colt Commando short-barreled M16 variants of the past. This shorter barrel makes the weapon significantly more compact, which makes it easier to use in and around vehicles and in tight confined spaces. Special units such as commandos boarding ships and bodyguards for senior officers have found such shortened weapons very useful and use the CQBR.
Its preliminary National Stock Number was 1005-LL-L99-5996; however, a complete CQBR-equipped carbine now has the NSN 1005-01-527-2288. The overall length of the upper receiver is 19.25 inches (489 mm). With the stock retracted, the overall length of the weapon is 26.75 inches (679.4 mm).
Near perfect - MK18 CQBR MOD1 Upper Receiver Group (URG) - No expense spared
Only 200 rounds through the barrel - Several new components recently installed - I am the second owner of this piece
Parts list -
- Colt M4 Upper Receiver Keyhole Cerro Forged (Like New Old Stock - some salt from...
Sorry, this item has sold
New CQBR Block II/MK18 MOD1
All new parts never fired.
Daniel Defense MK18 FDE RIS rail (with FDE rail panels not the black ones that they come with now)
Daniel Defense 10.3" barrel with pinned gas block
Stainless steel gas tube
Surefire 4-prong flash hider (not...
All New USAF SOF URG-I 10.3 CQBR upper
No tax ( I already paid that :rolleyes: )
Free shipping
Daniel defense 10.3" barrel with pinned gas block, no flash hider (Can add new surefire 3 prong for additional fee)
Geissele mk16 rail.
Geissele URGI charging handle (actual subdued version)...
Have a sons of liberty gun works exo2 10.5 upper, has about 100 rounds through it, upper has been rattle canned, can include kac rear iron griffin front, Bcm angled grip. will include solgw bcg and charging handle if trade comes with it or cash price,eotech /light not included.
Want to trade...
Long story short I have a little SBR I want to dress up as an Mk.18 and I want to buy a quad rail for it. My budget is around $150-ish. I have been looking at Troy and MI but not sure which one makes a better stand-in for the KAC RAS. I'm open to other brands as well. I'm not an operator and...
Sorry, this item has sold
Mk18 Mod0 Colt 10.3" CQBR upper assembly group (New, never fired)
Brand new Colt upper receiver (cage code and square mark)
Brand new Colt barrel (cage code, CQBR 0.70 gas port)
New KAC RAS
New KAC NT4 flash hider
New Colt old stock complete F/A Bolt carrier group...
For sale no trades
Mk18 CQBR upper
Colt Factory reciever
Daniel Defense 10.3 barrel
Daniel Defense MK18 Ris 2 handguard
Surefire 4 prong
Colt or Daniel Defense BCG and CH
No sights
No tango down stubby
Call or text if interested
6507661311 -Carl
Selling low round count CQBR upper.
Less then 400 through it
Stripped
DD reciever
DD 10.3
DD ris II FDE
PRI tube
DD has block
$725
Fully loaded would have
DD BCG
DD CH
Ergo rail ladders
Surefire 3 prong
Tango down stubby
$1150
Hey guys! Selling a new build but slightly used barrel.
FN tan anodized receiver set
Daniel Defense 10.3 Barrel
PRI tube
Badger ordinance gas block
Geissele DDC MK8 9.5" rail
Geissele DDC CH
ALG trigger
B5 coyote grip
WMD FDE LPK
Tanodized Dust cover
SB tactical FDE brace
NO SIGHTS...