Civil D is what I'm getting 💯

I would rather see heavier JHP (155-200gr) tested in both.

Wow you’re a saint for thinking what I’m thinking 6 years before me 😅 did you figure it out?!😅

Those are brass threads not steel

Stri Bog offers a 16" barrel for their 10mm model.

is it any good ? I like the structure idea of replacing upper with a whole unit, but on the website it lacks options that I think is best for a 9mm carabine. would love a 10" barrel on it and proper folding stock, perhaps I might redneck engineer it myself if I only gey my hands on one, I live in EU so bit different laws here, no ATF :D

So without a firepin safety, you would want to carry/stage it without a round in the chamber, got it.

The 10mm is an awesome Round!

what caliber were the counter snipers using? A rumor says .300 Mag, What distance did they fire from. Who shot from 488 yards?

Neither, your country is a joke with this.

Anti sniper seemed slow to act

I have one for my Glock 20 -smooth shooting and accurate, love it

OK, that makes a lot more sense I thought that the building the shooter was on was directly in front of the stage, but it looks more like Trump was looking almost directly at the shooter when he shot

ewww..hand gun bullets flying at the speed of rifle bullets

.357 sig is not from a .40S&W case. That case is too short. They actually use the 10mm case and cut it down to .357Sig.

Damn!!! 6 years later and this is still the best video explaning the mechanism... All other reviewers is just show. Thanks man!!! This is byfar one of the safest gun ive seen. Thanks again

If you are still active on here. What was the best and worst extended mags worked in the 10mm?

Well I got a Glock 21 gen 5 and mine came with a Romeo 1 fits real good and is accurate.

OMG.....and compared to a pathetic under-performing WWII M1 .30 Carbine w/110gn @ 1950fps, I'm not really impressed! Now, let's test a M1 .30 carbine w/underwood ammo?!?

Got one for my 10mm:)

"before I even clean it from the factory" if a gun shoots with preservative graces and lubricants instead of proper working lubricants you know it's pretty good...

Someday, somebody will make and sell a 7.5 barrel for the Glock 20. Now, that would be an interesting video.

4:29 That muzzle flash for a 9mm +P round. That’s no joke. I can only imagine the +P+, right along with the other calibers that have stupid hot loads

In Romeo 1 pro, that problem is not there, right? It's just the one that's not pro

Been looking for this exact video. Thanks so much.

Out of business? They still have a website.

"Didn't like the breeze"!I love it. 😅

Is there mechtech for left handed?

Daaamn, 2,800 FPS out of the carbine! That's over 1,040 Foot lbs of Energy! Literally 5.45 and 5.56 territory! 10mm 60 grain Civil Defense ammo is some spicy stuff!

Your excellent review is why we’re now subscribed. Was thinking to get this, you gave us the information we needed to know. Probably there are others out there without the firing pin issue extra weight.

I'd like to see how 180 and 200 grains compare

be a whole lot easier showing real gun with real mags with dummy rounds....i use 5 different P227 mags in my 2 different P250s now 5 years....2k plus rounds...work fine and one is my edc the other is bedside

In newer models, they should make a rail on the bottom that lines up with the rail on the pistol. This way you could have an attachment ancor them together. An extra piece that fits in with the pins for the adjustable backstrap and the upper would also help.

Wow checking out civil defense Ty

Gracias por la información ❤❤

I made a oopsie and got a romeo zero elite because it was on sale super cheap before I did research and yeah it will not fit on a glock 20. I'm taking it to a gunshop tomorrow I'll keep you posted to see if I can maybe get something milled.

I had a Taurus 36 special and was talked into getting a M&P 9mm ez slide. I like the revolver style. May I ask your opinion on the the two?

What's the law on those nowadays

Id he just say a glock 10 mm can shoot 9x25 dillon? At he end. Wonder if it would damage the rifling

2800 thats 30-30 speed

Question please. So being mouted so high its not going to be able to use with the iron sights ?

There is no way that you are getting 2000+ fps out of a pistol. Your equipment needs to be calibrated.

The way the barrels stick out is super goofy but what you're accomplishing number wise hell hang a BANG flag on it pleeeease LOL Are you in Alaska? Some guys shoot the 10mm with a bit longer barrel to get that extra PUNCH for those GRIZZ!!! I FRICKING LOVE IT MAN, LOVE WHAT YOU DID AND HOW DID YOU GET THOSE BARRELS SO CHEAP? HOW DO THEY SHOOT? ARE THEY MATCH GRADE? I HOPE YA KNOW INWAS JUST MESSIN WITH YA, I WAS GETTING ALL GIDDY FROM THE NUMBERS YOU WERE THROWING OUT THERE HAHAHA!

9".... 2,200 FPS WOWZER!!!!!!!!YEA I HAVE SOME HOLLOWS THAT SHOOT 1617 BUT SAYS 1700 BUT OUT OF THE 3.8 I'm suuuuuper happy! Underwood hollowpoints EXPLODE on contact! Makes milk jugs with water rain

Underwood & Doubletapp are the best ammo for the HOT stuff, Buffalo Bore is OK too!

Why all that when pistols are about to start making the 7.5 BRNO. I love my 10mm they are making the .338 Razorback off the 10mm too! The 10mm is so dang perfect why mess with her......aahhhh jk the 7.5 and .338 Razorback IS THE BEES KNEES BABY!!

My decades of experience with ammunition is it is necessary to use cartridges best suited for the firearm being tested. Using same ammo for rifle and pistols is a big mistake. Factory or home made cartridges for carbines are going to need much slower burning powders than that for sidearms with much shorter barrels. Please consider retesting with optimal ammo for different barrel lengths.

These were the worst possible loads to compare. You should have been trying some heavier rounds with slower burning powders. These solid copper bullets (which are huge and reduce case capacity), with fast burning powders see no real gains in longer barrels. A 155-200gr bullet with a good slow burning powder like AA#9 or 800-X would gain 400-600fps.

Cool to see an increase even out of that hanky ass macaroni conversion.

165 berry round nose with a full house load of long shot, that was always my favorite and most accurate load. At 50m I could hold dead on.