Does the Knights Armament Carbine Mod 2 14.5" Urx work with the Rosco Manufacturing Bloodline 5.56 M4?

Knights Armament Ar-15 Upper Receiver Carbine Mod 2 14.5" Urx 4 M-Lok

Upper Receiver

Knights Armament Carbine Mod 2 14.5" Urx 4 M-LOK

from $1989.16

Rosco Manufacturing Bloodline 5.56 Ar-15 Barrel M4 Carbine - 14.5"

Barrel

Rosco Manufacturing Bloodline 5.56 M4 Carbine

from $131.49

Knights Armament upper and Rosco Manufacturing barrel compatibility

Yes, they fit

The Knights Armament Carbine Mod 2 14.5" Urx 4 M-LOK works with the Rosco Manufacturing Bloodline 5.56 M4 Carbine. Our compatibility rules found no conflict between them.

This exact setup is in a real GunPartPicker build.

Counted from real GunPartPicker builds: parts lists people put together while planning to buy.

Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.

Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.

How often builders pair the Knights Armament upper and Rosco Manufacturing barrel

Backed by thousands of qualified builds that have both an upper and a barrel.

Barrels builders put on the Knights Armament Carbine Mod 2 14.5" Urx

Share of builds with the Knights Armament Carbine Mod 2 14.5" Urx and any barrel

Upper Receivers builders put under the Rosco Manufacturing Bloodline 5.56 M4

Share of builds with the Rosco Manufacturing Bloodline 5.56 M4 and any upper

  • Knights Armament Carbine Mod 2 14.5" Urx

    Of upper picks
    0.1%
    Median paid
    $2089

  • Rosco Manufacturing Bloodline 5.56 M4

    Of barrel picks
    6.6%
    Median paid
    $134
How we count ⌄

These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.

Frequently built with the Knights Armament upper and Rosco Manufacturing barrel

The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.

Charging Handle

Gas Block

Bolt Carrier Group

Trigger

Lower Receiver

Handguard

Stock & Brace

Pistol Grip

Muzzle Device

Knights Armament Carbine Mod 2 vs Rosco Manufacturing Bloodline: specs and prices

Knights Armament Carbine ModRosco Manufacturing
Best price$1989.16 at Brownells$131.49 at Ammunition Depot
Stores0 of 2 in stock7 of 8 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
Gas System LengthCarbinen/a
Caliber5.56 NATOAR-15
Length14.5Standard
Gas Systemn/aCarbine
Twistn/a1:7
Contourn/aM4
Threadn/a1/2x28

Both for $2120.65 at today's best prices.

Today's best prices and 90 day price history

Every store we track for each part, cheapest in stock first. Prices are checked through the day.

Knights Armament Carbine Mod 2 14.5" Urx 4 M-LOK

Rosco Manufacturing Bloodline 5.56 M4 Carbine

Price history, last 90 days

  • Knights Armament Carbine Mod 2 14.5" Urx: lowest $1989.16 on Aug 30, highest $2088.62 on Jul 5 over the last 90 days.
  • Rosco Manufacturing Bloodline 5.56 M4: lowest $131.49 on Jul 5, highest $162.99 on Aug 4 over the last 90 days.

Barrels frequently paired with the Knights Armament Carbine Mod 2 14.5" Urx

Most picked next to it in real builds. Only parts our rules say fit the Knights Armament Carbine Mod 2 14.5" Urx are listed.

Upper Receivers frequently paired with the Rosco Manufacturing Bloodline 5.56 M4

Most picked next to it in real builds. Only parts our rules say fit the Rosco Manufacturing Bloodline 5.56 M4 are listed.