Arms

The Lineup

Rifles

The Quiz

Find Your Rifle in 60 Seconds

Question 1 of 4

What's the mission?

Calibers

What to Use When

A caliber is the size of the round a rifle fires. For each rifle, here is what it is available in and general guidance on what to use it for.

RifleAvailable inWe recommend
HB10Calibers built on the .308 Winchester and Creedmoor cases.308 Winchester suits hunting and long-range shooting. 6.5 Creedmoor suits target shooting and long-range hunting, with moderate recoil.
HB15 Marksman5.56 NATO / .223 WyldeRange days, varmints and general use.
HB15 Duty5.56 NATO, .223 Wylde, 300 Blackout, 7.62×39, 6.5 Grendel, 6.8 SPC, 350 Legend5.56 for range days and general use. 300 Blackout is popular with suppressors. 7.62×39, 6.5 Grendel, 6.8 SPC and 350 Legend are popular for hunting and target shooting at moderate range.
RTSA bolt action (Round Top Short Action)Choose a bolt face: 0.382", 0.450", 0.486", 0.550"Pick the bolt face that matches the cartridge you plan to shoot. Tell us the cartridge and the shop will point you to the right one. Fits the Remington 700 stock and chassis you already own. Upgrade the action, keep your setup.
RTLA bolt action (Round Top Long Action)Choose a bolt face: 0.486", 0.550"Pick the bolt face that matches the cartridge you plan to shoot. Tell us the cartridge and the shop will point you to the right one. Fits the Remington 700 stock and chassis you already own. Upgrade the action, keep your setup.

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Built to a Standard, Not a Price

The Rifles

HB10 rifle

.308 Win / Creedmoor Family

HB10

The .308 Workhorse

DPMS-style AR10, upper and lower machined in-house. Precision gas-operated, 16–24″ barrels.

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HB15 Marksman rifle

5.56 NATO / .223 Wylde · 16–18″ Barrels

HB15 Marksman

Precision AR-15

Built for precise shots at the range and at distance.

Complete upper and lower, machined in-house, with a .223 Wylde chamber compatible with 5.56 NATO and .223 Remington, built around an 18″ 1/7-twist barrel.

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HB15 Duty rifle

5.56 NATO · .223 Wylde · 300 BLK · 16″ Barrel

HB15 Duty

Built for the Call

A shorter, handier rifle built for hard everyday use.

HB15 platform machined in-house, available in 5.56 NATO and other AR-15 calibers — 10″ M-LOK, carbine gas, duty-ready.

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Field Notes

What We Know, On the Record

Barrels, headspace, harmonics, brakes versus cans, and rangefinding. We put what we know on camera — because a shop that can explain the work is a shop you can trust to do it.

How Barrel Harmonics Affect Rifle Accuracy

Jul 2026

How Barrel Harmonics Affect Rifle Accuracy

Barrel harmonics play a bigger role in accuracy than most shooters realize — what they are, why they happen, and how they affect your rifle.

Muzzle Brake vs Suppressor: Which Is Better?

Jul 2026

Muzzle Brake vs Suppressor: Which Is Better?

The answer depends on your shooting style, priorities, and intended use. We put them head to head.

Precision Gas Guns 101

Jul 2026

Precision Gas Guns 101

The fundamentals of precision gas gun platforms, what sets them apart, and why they've become a popular choice.

Laser Rangefinding 101

Jul 2026

Laser Rangefinding 101

Range it right. Accurate distance is the foundation of long-range shooting.

Before You Fire a New Barrel — Watch This

Jun 2026

Before You Fire a New Barrel — Watch This

Before you send that first round downrange, there's one step you can't skip: checking headspace.

Match Grade vs Factory Barrels

Jun 2026

Match Grade vs Factory Barrels

Are match grade barrels really worth the upgrade, or can a factory barrel deliver the same accuracy?

Not a Rifle Guy? We Cut Those Too.

Precision bolt actions and suppressors — machined on the same floor, held to the same standard.