PSA 18" 6.8 SPCII Stainless Steel Special Barrel

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PSA 18" 6.8 SPCII Stainless Steel Special Lighter Profile Barrel - 6503

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$ 259.95

Quick Overview

WARNING: This product can expose you to the chemical lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to (CA Health and Safety Code Section 25249.6).

SKU: 6503
UPC: 6503

Barrel Length 18"

416R Stainless Steel
6.8 SPCII Chamber
1 in 11" twist rate
Mid length gas system
Lead lapped bore for accuracy
Special lighter weight profile
M4 Feedramps
.750" Gas Block required

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PSA 18" 6.8 SPCII Stainless Steel Mid-length Special Lighter Profile Barrel



Please check the barrel closely for any irregularities. It is the builder's responsibility to check headspace before assembling.

In the unlikely event you have an issue with a barrel, STOP AND DO NOT ASSEMBLE. Contact Customer Service.

SKU: 6503
SKU 6503
Brand Palmetto State Armory
Daily Deal No
Daily Deal Expires No
Youtube Video No
Free Shipping? No
Free Shipping Qty Label No
Free Shipping Qty No
SKU: 6503

Questions and Answers

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Browse 4 questions Browse 4 questions and 4 answers
What is the weight of this barrel?
Stewart Y on Apr 21, 2018
BEST ANSWER: It is very light. I didn't weight the barrel by itself but my upper went from 4 lbs 9 oz down to 4 lbs even when I replaced a RRA standard 16" barrel with this one. That is a weight reduction of more than 1/2 lb and all of it forward of the action.
Thinking about purchasing one of these , I assume it takes a rifle length gas tube?
doug r on Dec 14, 2018
BEST ANSWER: Mid length. It's in the title.
What is the threading specs on the end of the barrel? I’m looking for suitable flash suppressors/comps.
Alex K on Nov 13, 2018
Can this fit on an AR15 upper?
Luis P on Feb 3, 2019


5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
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1 Star
Very light, very fast, just as accurate
This barrel is fantastic. It transformed my 16" barreled, nose heavy, 7 pound rifle into an easy handling 6-1/2 pound rifle. I have measured 110gr loads from SSA, Hornady, and S&B and got 2659 fps/1727 ft-lbs, 2676 fps/1749 ft-lbs, and 2671 fps/1742 ft-lbs respectively at the muzzle. In the case of the SSA load it produced a 79 fps increase over what I was getting out of my RRA 16" barrel with 1/10" twist. Lightening the barrel doesn't appear to have given up anything in accuracy. In fact, it is more accurate than the barrel it replaced.
July 26, 2018

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