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The Bear Creek Arsenal Bolt-Action rifle upper is a fun and interesting way to explore the AR experience through a new lens. The diversity of calibers and barrel lengths offers something for everyone. The ability to easily build AR pistols and rifles, and to customize the design to your heart’s content, makes this a fun option for everyone.
When you think of an AR-15, you probably picture a gas-operated, semi-automatic rifle. That’s exactly what it is. Does an AR stop being an AR when we change that system?
We still call 9mm ARs AR-15s even though they are often direct blowback. Some use long- or short-stroke piston systems instead of direct impingement, and we still call them AR-15s. What about when it’s no longer semi-automatic?
The Bear Creek Arsenal Bolt-Action Upper changes your AR-15 into a manually operated rifle. It might no longer be an AR-15 by definition, but it’s AR-ish. The upper receiver and bolt are proprietary, and the gun lacks a gas system, but the rails, trigger, stock, etc., are compatible with the broader AR-15 platform.
The AR-15 has become the most popular rifle platform in the United States. Everyone makes one, and they make them at a variety of price points. BCA has always been a budget-oriented brand, but it is by far the most creative of the budget brands.
Since ARs are everywhere, they have a massive aftermarket. This allows for an extreme degree of customization. The BCA bolt-action upper allows you to access that aftermarket with a bolt-action platform. (In some states and countries, semi-automatic rifles are difficult to acquire, so this opens the door to the AR-15 world.)
If you’re buying a bolt-action rifle, one that takes AR accessories and uses AR ergonomics for the most part, then a bolt-action AR upper makes a lot of sense.
If you like to chase sound suppression and appreciate the AR platform, this upper is a great way to learn. Those are the practical reasons, but, for me, the BCA Bolt-Action Upper looked fun and was cheap, so I wanted to dive into the platform.
My idea was simple: can I create the poor man’s or broke boy’s Mini Fix? The Q Mini Fix is a premium-grade bolt-action rifle that fires 5.56 NATO, 6mm ARC, or .300 Blk and is designed for shooting with a suppressor. Since it’s a premium rifle, you have to expect a premium price point.
I like the idea of an intermediate-caliber bolt-action rifle, so I wanted to mount the BCA bolt-action upper to an AR lower with a folding stock. My goal was to create a lightweight, compact rifle designed for suppression.
Right away, I ran into some problems; namely, the bolt is way longer than it needs to be, protruding past the upper receiver and requiring a receiver extension. That seemed silly, so I grabbed an angle grinder and trimmed the back half off the bolt.
Next, the muzzle device would not come off. I’ve read online that they're installed with Rocksett, so I tried boiling it, soaking it in water for 24 hours, wrapping it in a wet towel, and applying heat.
It didn’t budge. I tried a torch, I tried hitting it with my purse, and the thing is still stuck on. Bear Creek Arsenal’s website says they do not use LocTite or Rocksett, so it must be over-torqued into place.
So, I couldn’t attach my can, but I got most of the way there.
Shooting the BCA Bolt Action: Accuracy & Reliability Analysis
The BCA Bolt-Action Upper comes with a modern, lightweight Talon M-LOK rail system. It’s 15 inches long and provides plenty of space for accessories. A bipod, in general, would be a great addition. The upper receiver is optic-ready with a Picatinny rail.
The barrel features BCA’s famously simple flash hider. The vortex-like design is great from BCA’s perspective because it doesn’t need to be timed. Over-torque and go!
The bolt handle is massive, and it works like a traditional bolt action. Push up, pull back, push forward, and rotate back down. The bolt and bolt carrier group lack a gas key, but they’re otherwise fairly standard for an AR-15, including length.
The upper can be used with any mil-spec lower receiver. Additionally, BCA offers a stainless steel option for the more discerning shooter.
Off the bat, the bolt on this thing is finicky. It sticks, binds, and takes a lot of force and speed to make the thing move.
You might say, "Hey, you cut the bolt!” Well, it was like that before I cut the bolt. That didn’t cause the binding.
I did find a workaround. When holding the bolt, press it inward toward the left side of the receiver. This makes it move much more smoothly.
With this technique, I could run the bolt quite quickly – surprisingly so. As I shot, the action smoothed out a fair bit. About 90 rounds in, I dropped the leftward pressure. Every so often, the bolt would still bind afterward, but it was much smoother.
When shooting, I tried numerous magazines. The BCA Bolt-Action Upper seems to prefer polymer feed lips. Metal magazines and Lancers were tough to operate smoothly and required too much force. P-MAGs, ETS mags, and other polymer feed lip designs work perfectly.
The gun seemed to require me to download the magazine by one round (loading 29 rounds instead of all 30). Every time I used a fully loaded magazine, the first round was always a hassle to load into the chamber.
Besides the binding, the gun didn’t have any significant reliability issues. I had one failure to extract on the initial operation of the bolt. I removed the magazine and ran the bolt again, and the round extracted and ejected.
When it comes to making tiny groups, the gun might disappoint you. Bolt actions are known for their affordable precision. That’s not quite the case here.
I can produce five-round, 3-inch groups at 100 yards with 55-grain, brass-cased .223 Rem. That’s not terrible, especially for an upper that costs around $200. It can probably clean up with match-grade ammo and a better shooter, but I don’t see this being a 1-MOA-all-day gun.
Steel-cased Tula expanded the group to 4 inches, and M855 produced 3-inch groups (but not as consistently as the 55-grain .223 Rem).
With that said, I had a lot of fun shooting small, swinging gongs. Hitting them, working the action, and trying to hit them again on the upswing amused me greatly. The BCA upper certainly satisfies the fun factor I envisioned, even with all its issues.
Ergonomics: Fit & Feel
The BCA Bolt-Action Upper has a large, bent bolt handle that makes it easy to run it back and forth to keep the action from binding. There is no left-handed option, so the bolt is stuck on the right side of the gun. In this format, it still seems easy to run with a left-handed shooting position.
The reach is slightly longer than that of a standard bolt-action. To me, it’s easy to use, but certainly different from a standard bolt action. You don’t have to break your firing position to activate the bolt.
Finding the right optic and getting behind it isn’t a challenge. Depending on your stock, you can easily adjust the length of pull and get everything fit just right. One of the AR’s biggest strengths is its ergonomics.
All the controls are easy to reach and activate. Plus, you can change basically every part of the gun to make it exactly what you want it to be.
The recoil impulse is mild, but notably increased over a semi-auto. Overall, it’s not going to beat you up, but AR-15 shooters will notice the difference.
The rail keeps things light up front, resulting in a well-balanced rifle. It’s comfortable, easy to grip, and seemingly well-suited for a bipod with its free-floating barrel.
Improvements I’d Like To See
I’d love to see three things. First, smooth out that bolt throw. It doesn’t need to be so darn rough.
Second, trim the bolts so the upper can work with folding stocks or guns without a receiver extension. If we don’t need the buffer, we don’t need the long bolt.
Finally, sell these guns without a muzzle device. Toss on a thread protector and call it a day. They could even lower the price by about five bucks!
Who Is It For?
If you live in a state or city that makes it tough to own a semi-auto rifle, a bolt-action upper can give you AR-15 ergonomics and customization without that restriction. The BCA Bolt-Action Upper is a cheap way to get into the restricted rifle market.
If you want to chase suppression performance, one of these uppers in .300 Blk with a can would be crazy quiet and a lot of fun. When I eventually get this muzzle device off, I’m going to load some subsonic .223 and have a silent, broke boy’s Mini Fix.
Even without a can or rifle restrictions, the bolt-action upper is a new experience and one that’s a fair bit of fun.
By the Numbers
Reliability: 3/5
The bolt binding, the failure to extract, and the inability to fully load the magazine make this setup a little picky. However, it gets points for being able to cycle subsonic .223 Rem.
Ergonomics: 4/5
It’s an AR-15 for the most part, so the ergonomics are on point. The bolt can be fast, but it isn’t always, so it loses a point.
Customization: 4/5
Nearly anything you can do to an AR, you can do to this thing. However, the difficulty of removing the muzzle device limits its use.
Value: 3/5
The low price point saves this gun from being a total drain.
Overall: 3/5
The BCA Bolt-Action Upper is fun, a little different, and accurate enough for most of us playing with odd AR-15s.
I hit the range with three types of ammo. I shot 120 rounds of steel-cased Tula, 120 rounds of 55-grain .223 Rem, and 120 rounds of 5.56 NATO M855. I fired five five-round groups with each type of ammunition to assess accuracy.
I reviewed multiple magazines to identify feed issues across different brands. I fired quickly, often as fast as I could cycle the action, to assess reliability.
Meet The Experts
Pew Pew Tactical author Travis Pike wrote this article. Travis spent a lifetime shooting as a kid and later joined the United States Marine Corps, where he served for five years as an infantryman. His experience as a machine gunner, recreational shooter, and hunter has given him unique insight into various weapon platforms. Additionally, Travis has authored thousands of articles across a variety of publications and has tested countless firearms and firearm accessories.
Final Verdict
The BCA Bolt-Action upper is a fun way to experience the AR-15 in a different light. It’s not a fantastic design and has a few quirks, but the low price means I don’t regret my purchase. While it’s far from perfect, it made me smile, and that's valuable.
Would you put a bolt-action upper receiver on your own AR-15? Let us know in the comments. Looking for something more conventional? Check out our guide to the Best AR-15 Upper Receivers!
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