Terminus Actions Pre-fit Barrels
$789.00
Introducing the full line of pre-fits barrels ready for any Terminus Actions. We only use the best MATCH GRADE hand lapped barrels to ensure you have the most accurate setup available! Please make sure you read the description below to ensure you get the right barrel for your build. If you have any questions do not hesitate to call and we can walk you through the process.
Updated Lead times- Leadtimes
Description
Terminus Actions Pre-fit Barrels for: Zeus, Kratos, and Apollo.
We craft our Shouldered Pre-Fit Barrels from match-grade stainless steel blanks, earning a reputation as the best in the industry. Professional shooters across nearly every match discipline now rely on our Pre-Fit Barrels for their precision and performance. With run-outs of .001″ or less, our barrels pair perfectly with Terminus Actions—creating a combination that’s truly unmatched.
Flexibility
A pre-fit barreled action from Straight Jacket Armory offers unmatched flexibility for hunters and competitors alike. These systems are built with precision and performance in mind. They give you the power to adapt quickly, without relying on a gunsmith. First, changing barrels is fast and simple. You can swap calibers in minutes. This means you can tailor your rifle for different competitions or hunting scenarios. One action can support multiple barrels, which saves you money and space.
For hunters, flexibility is game-changing. There’s no need to carry multiple rifles. Instead, one platform handles it all. That’s a huge advantage in the field. Likewise, competitive shooters benefit just as much. You can change out a worn barrel quickly and get back on the line. When you want to experiment with a new caliber, just thread on a new barrel. There’s no long wait and no extra machining.
Precise Headspacing
Each pre-fit barrel from Straight Jacket Armory is cut to exacting standards. The fit is precise. Headspacing is spot-on. That means you don’t lose accuracy or consistency when you swap barrels. Keep the edge in performance every time you shoot. Over time, the system pays for itself. Spend less on gunsmithing, reduce downtime. You gain more control over setup. Carry less weight if you’re traveling, hunting, or shooting in multiple locations.
Additionally, the modularity of the system increases confidence. You know your rifle can adapt. Whether you’re chasing game in the mountains or chasing points at a match, your gear is ready. In short, a pre-fit system from Straight Jacket Armory is more than convenient. It’s smart, cost-effective, and built for performance. It gives hunters and competitors the edge they need—every time.
Use the drop-down menus above to build your Pre-fit barrel.
Carbon fiber is by preferred or , Proof, Select yours in the drop-down menu. (price will adjust as you select options)
NOTE: ALL REAMERS ARE NO TURN NECKS.
If you have questions about available stock please call us 435-462-1607
Pre-fit Barrels Lead Times
Lead times are approximate but we try very hard to say within 11-12 weeks (estimated). Lead times are estimates and may vary. Due to the custom nature of these Pre-fit barrels and orders, we do not accept cancellations after 72 hours.
For full details on our terms and conditions, please review our policies located under “Terms and conditions” at the bottom of the homepage.
NO REFUNDS ARE GRANTED ON THESE CUSTOM-ORDERED BARRELS.
Check out our Proof Research Carbon Pre-fit Barrels and other popular custom builds!
Jeff (verified owner) –
Ordered a 22 Creedmoor for my sig Cross back in January and they mailed it to wrong address. They didn’t seem worried about it but it pissed me off so I was probably done with Strait Jacket . Well it shot so good I couldn’t help but to order a 6 Dasher barrel. Dam does it shoot good. Strait Jacket Armory is the real deal. Now I got to develope a load for my 25 Creed barrel. They are gonna get all my money ! 😁
Troy Emge (verified owner) –
Have multiple Terminus Zeus long action prefits (2 x .300WM, 2 x .28 Nosler, 1 x 6.5PRC) from Nick and team, all have shot lights out and have repeatable zeroes at 100 yards – between calibers.
Yes, they are cut that nicely, you can go from one caliber to another and still be very close to intended POI. Shank threads and barrel threads are all clean and without burrs – 10 / 10 will buy again
Rick H –
Outstanding quality in precise machining. I just ordered two more 6.5 CM quick fit barrels for my Zeus action. 26 inch polished stainless Shilen barrels. When I am on my game and having a good day, out of 10, 5 shot groups I usually get at least two sub 1/4” groups. Some 3/8” and a few 1/2 at worse. The 1/2” moa groups are always because I got too excited about 4 in one hole, can’t stay calm, and pull the last one lol. I am very impressed with the skill this company has making very accurate barrels and their prices are very reasonable. They are very friendly and always eager to help with any questions too. I am a customer for life!!
Danny Zedell –
I recently purchased a Shilen Select Match barrel chambered in 6mm Dasher from Straight Jacket Armory for my Terminus Zeus action, and I couldn’t be more impressed. The craftsmanship and precision are absolutely top-notch. All dimensional measurements of the tenon and chamber are held to extremely tight tolerances—exactly what you’d expect from a true match-grade setup.
The fit and finish are flawless, and the attention to detail really shows the pride and skill that goes into their work. The exacting tolerances of the barrel complement the Terminus Zeus action perfectly, producing a seamless pre-fit that inspires confidence from the first install. It’s rare to see this level of precision and quality control in a pre-fit barrel.
I’ll definitely be using Straight Jacket Armory again for future builds and highly recommend them to anyone looking for a pre-fit barrel done right. Outstanding work and excellent service all around!