REVIEW: BPM-15 Barnes Precision Machine AR15 Pistol Review


Looking for a SERIOUS AR15 pistol? Check out this one… READ MORE

Major Pandemic

BPM AR15 pistol
Overall, the BPM embodies everything an AR-platform can be. It’s a capable, very serious, tool. And a lot of fun to shoot!

Last year Barnes Precision Machine (BPM) added AR15 pistols to its line-up. Being a long-term fan of BPM, and reasons for that will come out in this article — I had to have one.

Generally, as a reviewer of a continuous stream of AR15 rifles, I have to strain a bit to understand the benefits X-brand delivers vs Y-brand…because in most cases 99-percent of AR15 manufacturers all use the same parts from the same OEM manufacturers. Barnes is one of those OEM manufacturers in the list who makes parts for the biggest names in the industry.

With nearly every part being made in-house Barnes has the ability to assure every part they use comes together in the most optimal fashion. The result is a tighter fitting and feeling rifle with a higher potential for accuracy.

Barnes has both the build and part quality down; however, what sets them apart is the 100-percent in-house production (excluding springs, trigger, and furniture). I know of four manufacturers in the US actually making a majority of the AR15 parts in house — LMT, Daniel Defense, Colt, and Barnes Precision — however there are a few others starting to pop up here and there.

sig brace
The BPM pistol comes with the excellent Sig Brace over a KAK buffer tube, which can be easily replaced with a stock, given proper approval.

Many manufacturers are creating ARs and AR accessories because they look cooler than the original. Do they work better? No, generally it is about blinging out your AR versus increasing any real level of performance. Barnes Precision takes a different route with the belief that the overall AR15 platform and design is excellent as is, but some smart tweaks can make it exponentially better without huge cost increases — and still maintain the integrity of a Mil-Spec rifle. Little things make a difference like a captured take-down detent spring that doesn’t go flying when you remove the buffer tube, a tight receiver-to-receiver fit that can even be tightened with an internal receiver tension screw, a sub-MOA match-grade barrel included even in their least expensive rifles, and softer-shooting mid-length gas systems. BPM includes their own Barnes NiBo (Nickel-Boron) coated bolt carrier group and a nice lockable hard-sided Patriot Case with die-cut foam inserts.

There are other innovative design concepts BPM pioneered to improve reliability and durability of the AR15 platform. The in-house made bolt’s cam pin hole is reamed versus being peened which increases the strength of the bolt. BPM designed the first long extended barrel nut design for free-float handguards which does not require indexing, allows perfect torquing of the barrel, and delivers a significantly stronger rigid handguard (in my opinion it is the most solid in the industry). The design is so rigid that certain Military units are using the handguard to mount precision sighting systems. BPM was also the first in the industry to offer NP3 coating on AR15s not because it was cool looking, but because it protected all those typical phosphate coated parts from rust and corrosion in a marine environment. Of course all these great features are included in the BPM-15 Pistol as well.

BPM pistol
On this model, the stainless match barrel, gas block and gas tube are Melonited inside and out.

Back in 2014, I had several discussions with Andrew Barnes (President BPM). His perspective was that he did not want to offer an AR15 pistol because everyone else had one, he wanted to assure it could be a tool for military, law enforcement, and civilians from a practical perspective. With the rise of the Sig Brace and civilian comfort with Trusts to register SBR — Short Barreled Rifles — he believed there was a niche. Input from his military and LEO contacts really wanted a fast AR15 pistol or SBR which could get in and out of vehicles fast with all the same features as the BPM-15 rifle, including good accuracy. College campus security wanted something light and fast which could address terroristic threat on campus, but be light and small enough to carry every day on the golf carts and Segways used on campuses.

The base of the pistol is exactly the same as their rifles, but with a shorter 7.5-in. barrel, shorter handguard, and Sig Brace with extended buffer tube. The result is a civilian-legal short, fast, and powerful defensive and sport pistol that is a tool versus a toy.

The handguard for instance is not the cool-looking extended-over-muzzle-length style because the handguard length is sized to assure clearance of any muzzle device or suppressor without worrying about handguard interference. Barnes also used a heavier barrel to assure it could satisfy the demands of sustained continuous fire versus a faster-heating skinny barrel. Instead of just slipping a Sig Brace on the back of a standard pistol buffer tube, BPM used a KAK buffer tube to provide a more comfortable shooter platform with the Sig Brace. The end result is a tight, well-thought-out AR15 pistol which is useable out of the box as a defense and sporting tool, but can be easily converted to a shoulder-stocked SBR with the properly acquired tax stamp.

BPM handguard
BPM uses a proprietary extended barrel nut design that produces a very rigid handguard.

Almost every other manufacturer who offers some fancy diamond hard finish are only at best delivering a upper and lower receiver with a really hard finish. The problem is that they are coating the hard anodized items which are already the most impervious to corrosion, but all the other phosphate parts are left exposed which can rust of corrode quickly in a marine or wet environment. Barnes offers 100-percent NP3 coated firearms as a BPM NP3 Parts Upgrade Package.

BPM pistol
My test gun featured Barnes Precision Machine NP3 Parts Upgrade Package.Trigger assembly pins, trigger set, ejection door components, forward assist components, charging handle, selector, take-down and pivot-pins, springs, castle nut, egg plate, even the detents, handguard bolts, barrel nut, crush washer, and flash hider are NP3 treated.

The package includes NP3 coated trigger assembly pins, a trigger set, ejection door components, forward assist components, charging handle, selector, take-down and pivot-pins, springs, castle nut, egg plate, even the detents, te handguard bolts, barrel nut, crush washer, and flash hider are are NP3 treated. On my model, the stainless match barrel, gas block and gas tube are Nitrocarburization treated (AKA: Melonited) inside and out which is better than chrome because it delivers superior corrosion resistance and does not degrade accuracy like chrome can.

In the end, the coatings deliver a totally corrosion-resistant AR. All this was done not to deliver the stunning custom-look it has, but, as Andrew Barnes was quick to point out “the cool factor is only a side benefit…it’s all about performance.”

Mepro 21
An Israeli Mepro 21 is the perfect sight for this firearm.

My testing did not center around the conventional accuracy testing, but instead testing the pistol for what it was designed for — fast shooting on man-sized targets from 0-300 yards. For this task, I attached an Israeli Mepro 21 sight which has proven itself easy in combat environments as one of the best combat reflex sights on the market. My Mepro 21 features the triangle dual (fiber optic and tritium) illuminated reticle. Frankly I love this optic and it proved perfect for this BPM15 Pistol.

Once I established a 25-yard zero and confirmed no additional tweaks were needed at 300 yards, I started having A LOT of fun. With my steel Action Targets set up at 25, 100, 200, and 300 yards, I was extremely impressed how easy the Barnes pistol was to shoot. They had done their homework. I was able to keep my hostage 6-inch swinger swaying on the 200-yard line. Of course I missed a few shots here and there, however for an AR15 Pistol, this gun is well-suited to serious work whether for defense or sport.

AR15 pistols are, of course, just as legal and easy to acquire as any other handgun through your local FFL. An AR15 pistol is a great path to acquiring a Short Barrel Rifle complete with any rifle shoulder stock you might want. A buyer can purchase and enjoy the AR15 pistol while waiting for ATF SBR tax stamp to come through and then swap out the Sig Brace for a rifle stock. I cannot wait to push my SBR stamp through on this build to convert from pistol to Short Barrel Rifle.

About a year ago, I was very skeptical of the usefulness of an AR15 pistol in the home and urban environment. Today I stand converted. Once I shot a well-designed AR15 pistol and realize how quick the gun is for urban home interiors, I began to believe that the AR15 pistol is actually the best home defense option that combines the accuracy, power, and capacity of the AR15 with the maneuverability of a pistol. This BPM-15 pistol embodies that concept perfectly.

BPM pistol specs

Barnes Precision Machine
The Mako Group (Mepro sight)

Major Pandemic

[Major Pandemic is an editor at large who loves everything about shooting, hunting, the outdoors, and all those lifesaving little survival related products. His goal is simple, tell a good story in the form of a truthful review all while having fun. He contributes content to a wide variety of print and digital magazines and newsletters for companies and manufacturers throughout the industry with content exposure to over 2M readers monthly. Click HERE to learn more.]