Rosco Manufacturing 20″ .223 Wylde Purebred SPR Barrel (1/7 Twist)

Original price was: $240.00.Current price is: $205.80.

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SKU: PB-20-SPR-223W-7-R UPC: 181969500319

Product Description

This Rosco 20″ .223 Wylde Barrel was made to give the precision carbine shooter the best possible option for extended-range shooting within this chambering option. Whether you are trying to make a longer version of the MK12 platform or re-barrel your 20” carbine for DCM/ National Matches our barrel will deliver optimal extended-range performance time after time.

This barrel is OPS Inc. compatible.

Rosco Manufacturing’s “Purebred” series is a testament to precision and quality manufacturing. We took a step back to see how we could create a barrel line that would be a culmination of all the lessons learned through years of making barrels for several OEMs. The result is a barrel that will produce results out of the box for any shooter who is looking to take their skills above and beyond. All of our Purebred barrels are made from scratch in our Rhode Island facility and start life as a blank piece of 416R stainless steel.

Aside from making our own barrel blanks, and barrel extensions, we also hold ourselves to the most stringent quality standards. This is the only way that we can make sure that we are producing a product that will perform time after time under the demands of situations. We are setting out to re-define the rules and we plan on letting our work do the talking…


  • Barrel Length 20.0″
  • Barrel Weight 43 oz
  • Barrel Material 416 R
  • Barrel Caliber .223 Wylde
  • Barrel Profile SPR
  • Twist 1/7
  • Barrel Thread 1/2 x 28
  • Barrel Gas Block Size 0.750
  • Gas System Length Rifle
  • Barrel Crown Step Crown
  • Barrel Finish 80 Grit Bead Blast
  • Barrel Extension Finish Nickel Boron

Additional information

  • Weight 4 lbs
  • Dimensions 19.5 × 2.3 × 2.2 in




Technical Information


.223 Wylde

Barrel Twist


Thread Pitch

1/2 x 28

Gas Block Size






Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit