I was impressed with the simplicity. Just load 12 BBs in the magazine’s slot and seat a 12-gram CO2 cartridge in the magazine. I was able to fire six 12-round magazines from the same CO2 cartridge before velocity started to fall off.
Mark Miller is a former U.S. Customs Agent and Green Beret with operational experience in Afghanistan and other live-fire zones around the world. A lifelong student of firearms and tactics, Mark combines battlefield-tested wisdom with technical knowledge gained as both an FFL and a Special Occupational Taxpayer (SOT).
His approach is rooted in hard-earned experience: terrain and situation dictate tactics—and the enemy always gets a vote. Whether he’s writing about firearms, evaluating gear, or analyzing real-world applications of force, Mark brings strategic insight and no-nonsense clarity to the GunsAmerica team.
Experience:
– Green Beret Veteran – Served in Afghanistan and multiple high-threat environments with U.S. Special Forces.
– Former Customs Agent – Federal law enforcement background with real-world interdiction and enforcement experience.
– FFL & SOT Holder – Licensed dealer and manufacturer with a deep understanding of firearms law and NFA weapons.
– Tactical Thinker – Believer in adaptive tactics shaped by terrain, mission, and threat.
– Combat-Proven Insight – Offers a rare blend of firsthand combat knowledge and technical firearms expertise.
– Firearms Educator – Dedicated to improving skills, understanding, and mindset for both professionals and civilians.
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Dot of Doom Designed for Duty: Nikon’s P-Tactical SPUR Reflex Sight
Published: June 22, 2019 { 2 comments }Nikon’s P-Tactical SPUR reflex sight is built for close and medium range applications. Tiny but mighty, it is rugged enough to handle abuse and recoil on nearly any pistol, rifle or shotgun with a Picatinny Rail.
Optimized for PCC: Stern Defense’s H2S Drop-In Trigger
Published: June 5, 2019 { 0 comments }Stern Defense’s Hybrid 2-Stage (H2S) trigger was developed with pistol caliber carbine and defensive shooters in mind.
Big Bore, Low Recoil: CMMG’s Resolute 300 Series Carbine in .40 S&W
Published: June 5, 2019 { 7 comments }CMMG’s Resolute 300 carbine in 40 S&W is a joy to shoot with plenty of energy for practical work.
Simple AR Caliber Change: EndoMag Insert Converts Your Lower to 9mm
Published: May 26, 2019 { 4 comments }Pistol Caliber Carbines have earned a place in your gun safe. Fun, inexpensive and easy to shoot, they even have their own competitions. The Mean Arms EndoMag magazine insert converts your Gen 2 or Gen 3 5.56/.223 PMAG® housing into a 9mm magazine and conversion block mating a standard AR lower to your 9mm upper. This idea is simple, effective and brilliant.
Stern Defense Caliber Conversion for ARs: New Model Uses P320 and M&P Magazines
Published: May 22, 2019 { 0 comments }Stern MAG-AD adapters are very easy to install. They lock in hard with no wiggle after adjustment. They hold your mags in and drop free when the release-control is engaged.
Buckshot in the Night: The New TL-Racker Shotgun Forend Light From Streamlight
Published: May 14, 2019 { 7 comments }Streamlight’s new integrated forend light fits both Mossberg 500/590 models and Remington’s 870. Producing 850 lumens, the TL-Racker is a must-have.
Side Cocking AR That Feeds From MP5 Magazines: Quarter Circle 10/ Strike Industries 9mm AR Build
Published: May 11, 2019 { 6 comments }The new gun at SHOT 2019 was the MP-5. Importers and American companies are supplying clones and new AR pistol caliber carbines now run MP-5 magazines. Quarter Circle 10 (QC10) and Strike Industries (SI) are at the front of that movement and plug the excellent MP-5 magazine into the All-American AR to make a world-class 9mm carbine.
Air Venturi Wing Shot: .50 Caliber Air Shotgun Built for Hunting
Published: May 6, 2019 { 7 comments }Weighing less than 7.5 pounds, the Wing Shot is perfect for new shooters. The lightweight, low noise level and the lack of recoil will let you shoot all day without a sore shoulder and you can hear your coach because you don’t need ear muffs.
Convert Your AR to 9mm with CMMG 9 ARC Magazines
Published: April 25, 2019 { 5 comments }New from CMMG this week is their 9 ARC magazines and mag inserts, which make standard AR mags compatible with 9mm ammo.