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  1. rjrivero

    Convert an AR Carbine to Pistol

    There is a letter out there that says you can even use the rifle buffer tube, provided you don't put a stock on it. http://www.jcweaponry.com/images/ar15/BB.JPG
  2. rjrivero

    Convert an AR Carbine to Pistol

    With regards to your stripped lower: According to ATF 2011-4 you must build it into a pistol first, then can convert it to a legal rifle, and then back to a pistol at will. How would the .gov know if you built it into a pistol first or a rifle first? Your guess is as good as mine. For your...
  3. rjrivero

    Osprey 9MM or .45 for Glock 17?

    I have an osprey in .45 and in 9mm. They are fine cans, and either will do fine on 9mm. If I had it to do over again, I would get an Octane .45 and extra end cap for 9mm. The first round pop is annoying in the Osprey's, and find the Octane more enjoyable to use. The ospreys hardly come out...
  4. rjrivero

    10/22 takedown flash hider

    Get a suppressor.....You won't have to look at those ugly threads then either!!
  5. rjrivero

    Scope Mounting Problems

    You could easily lap the front base a few thousandths. Cover the front receiver with masking tape, lay wet to dry sandpaper over the tape and rub the base on the sandpaper nice and slowly until you take off enough material to make the difference you need. You could also just ditch the two...
  6. rjrivero

    Air-soft Glock

    Glock made a big fuss regarding airsoft replicas of their pistols and they successfully got them pulled off the market years ago. Recently Stark Arms started making replicas again, and they're pretty darned good. If you use Airsoft for Force on Force, this is a nice addition...
  7. rjrivero

    AR acting up

    Provided that this new build is well lubed and clean, then: Sounds like a gas system problem. So you must make sure you have the gas block over the gas port, especially if you're using a clamp on style or set screw style gas block. Very common for these to be a little out of spec and not line...
  8. rjrivero

    AR Malfunction - Please help diagnose

    This picture is definitely a short stroke. That round is definitely not American Eagle XM 193. That's a lacquered bullet, brown bear or some other commie block ammo which is notoriously under powered. More than likely your gun is fine and will chew up quality bulk ammo without issue.
  9. rjrivero

    9mm Carbine...

    Kriss Vector in 9mm sure is an intriguing design.
  10. rjrivero

    9mm AR build question

    Since the 9mm bolt replaces a bolt plus bolt carrier, I'm kind of lost about your comment regarding using an M16 bolt. Can you clarify that for me? Now that you can get Tungsten Buffer weights from Geissele, I think you may be able to get to a 4 m/s standard if you so choose. I'll have to...
  11. rjrivero

    OK, what is the Moon Clip trick????

    jmorris....if you're willing to build that moon clip loader/deloader, I'd be willing to purchase one from you! That's slick!
  12. rjrivero

    Pistol Caliber Carbine- bullet velocity

    Action Matters The blowback action of semi auto 9mm rifles limits the amount of additional velocity you can achieve in these guns. A few years ago I was working with a 9mm AR15, I tested factory ammo from 4", 8", 12" and 16" barrels and found the velocity slowed down in 16" vs 8" I think...
  13. rjrivero

    AR-10 (OBR) scope mount - two piece rings ok?

    The eye relief is tricky on AR10's. If you have enough eye relief to use rings and you have 20 moa already built into your upper receiver, then I would prefer to go that way. Because I have no rise in my upper, I use a mount with 20MOA built into it.
  14. rjrivero

    Remington 700 SA rail. HELP

    It's a big ask to get 3-4" of less eye relief on this mount.
  15. rjrivero

    Remington 700 SA rail. HELP

    I would imagine you would either shorten the stock, or use one of these adapters to push the optic further back. But it will cost you with extra elevation on the optic to do it this way...
  16. rjrivero

    Spotting scope: glass or camera

    A spotting scope is infinitely more useable. If you have any inclination to go hunting, bird watching, start gazing, etc a spotting scope will serve you MUCH better. A target camera, meh. You can look at targets, but not ANY targets, paper targets only as steel will catch spall and destroy...
  17. rjrivero

    Glock 34 Holster..(With do dads )

    Curious: What competition are you doing? Drop leg draw is so slow compared to other options.
  18. rjrivero

    Shopping for a 30 Suppressor

    Depends what the standard of accuracy is that you're looking for. Precision rifle matches are pretty void of QD suppressors. Especially on the winning rifles.
  19. rjrivero

    Shopping for a 30 Suppressor

    I prefer the Allen Engineering suppressors for my bolt guns. The suppressor is thread mounted reflex design, meaning it comes down over the barrel and indexes on a 20 degree ramp either machined into the barrel directly. Instead of indexing on the shoulder of the threads, this makes aligning...
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