Knight's Armament PTR Suppressors: The Latest in Pressure Reduction Technology

Welcome to Shooting Surplus! Today, Rand takes us through Knight’s Armament’s latest line of suppressors, the PTR series, which stands for Pressure Reduction Technology. If you’re into high-performance suppressors, this one might catch your eye.

The New vs. The Old: Meet the MCQ and CQB

Rand starts by introducing us to the PTR series predecessor, the CQB model, and the latest addition to the family, the MCQ (Mini Close Quarters). At first glance, one key difference is apparent: the MCQ is more compact at 4.4 inches, compared to the CQB’s 5-inch length. Despite the size difference, the MCQ weighs slightly more due to its robust 3D-printed steel construction, which is designed to handle high pressure and extended use. The MCQ weighs in at about 13.9 ounces (although slightly heavier due to carbon build-up from previous rounds), compared to the CQB’s 13.5 ounces.

Pressure Reduction Technology (PTR): What’s the Buzz?

You might be wondering why this new suppressor is worth discussing. The answer lies in the PTR – Pressure Reduction Technology. Over the past few years, the firearm industry has seen a surge in demand for products that address gas blowback, which can affect the shooter’s comfort and performance. PTR technology aims to alleviate this issue by allowing gas to vent out, reducing the amount that flows back toward the shooter.

The MCQ’s design includes subtle cuts that allow for this flow-through capability. This design lets gasses escape out the front of the suppressor rather than back into the shooter’s face, making the shooting experience cleaner and more comfortable.

Field Test: Shooting with the MCQ

Rand and Estevan take the MCQ out for a field test, and the results are interesting. While the MCQ offers an extremely tight lockup, it’s recommended to shim the flash hider or muzzle brake slightly for an optimal fit (specifically on the Knights Armament MOD 2 rifles). Once on, they take aim, noting that the MCQ delivers a noticeable improvement in gas management over the CQB. While there’s still some gas blowback near the bolt carrier group, the PTR technology makes a difference.

The MCQ does, however, have one drawback: it’s slightly louder than the CQB. Both Rand and Estevan agree that while it may not be significantly louder in decibels, the difference is noticeable, particularly near the ear.

Final Thoughts: The Pros and Cons of the MCQ

After wrapping up the field test, Rand shares his final thoughts on the MCQ suppressor. Overall, he’s impressed with the PTR technology, as it successfully reduces the uncomfortable gas blowback present in the CQB. Although the MCQ might be a bit louder than its predecessor, the benefits of reduced blowback make it a worthy trade-off for Rand. Estevan echoes these sentiments, noting that while it can’t eliminate blowback completely, it does provide a better experience overall.

In Rand’s words, “Out with the old, in with the new.” The PTR technology does work as promised, making the MCQ an excellent addition for those who prioritize comfort without sacrificing durability. He’s sold on it—and if you’re looking for a suppressor that blends performance with reduced gas blowback, the MCQ might just be worth the investment.