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Thread: Dueling 12.5's - build planning, ersatz-GL/SSC vs GAU-5 ASDW

  1. #31
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    PIP component-coupler installed as a test fit:


    A3 Tactical double-ended Pic coupler with 3-slot Leapers UTG riser. Crossbolt is in the foremost slot of the rail stub due to length of the Cry Havoc protective cover.
    Last edited by Diamondback; 11-09-22 at 19:31.
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  2. #32
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    Further update: A5 added too much length for intended case. MBUS 3 sights arrived today, work very nicely with this coupler neither mechanically blocking the join nor optically blocking the line-of-sight. Dowel rods and rubber bands are temporary "alignment jig" until I get the barrel ordered.





    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!
    --after Capt. Hector Barbossa
    Joe Biden is not, nor will he EVER be, my President. Psalms 109:8 #SauceForGooseSauceForGander #AllDemsArePedos

    LIFE MEMBER - NRA & SAF Not employed or sponsored by any manufacturer, distributor or retailer.

  3. #33
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    What is the assembled length of the unbarreled upper mounted on a carbine-extension lower?

  4. #34
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    Quote Originally Posted by Disciple View Post
    What is the assembled length of the unbarreled upper mounted on a carbine-extension lower?
    Didn't have a lower handy to test, will get back to you. Also in the middle of a property manager-demanded cleaning binge, pop a flare if I don't have an answer by Monday AM.
    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!
    --after Capt. Hector Barbossa
    Joe Biden is not, nor will he EVER be, my President. Psalms 109:8 #SauceForGooseSauceForGander #AllDemsArePedos

    LIFE MEMBER - NRA & SAF Not employed or sponsored by any manufacturer, distributor or retailer.

  5. #35
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    15-1/4" in Stowed, 27" Deployed. Basically a standard 12.5" AR with a 10.5" rail other than the Cry Havoc QRB adding another inch. Bear in mind the "minus barrel" upper will be around 1/8 to 3/16" shorter once I get the tabs lopped off to properly mount the rail...

    Prefatory note before I post the photos: This lower was first completed as a pistol, and in these photos it has neither barrel nor BCG attached. If you look close in the ejection port you can see the hammer forward as an additional safety measure. There is no NFA violation here because this is not a complete firearm; once the barrel arrives it goes straight to my storage unit still sealed in package until its own pistol lower is ready for it.


    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!
    --after Capt. Hector Barbossa
    Joe Biden is not, nor will he EVER be, my President. Psalms 109:8 #SauceForGooseSauceForGander #AllDemsArePedos

    LIFE MEMBER - NRA & SAF Not employed or sponsored by any manufacturer, distributor or retailer.

  6. #36
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    Quote Originally Posted by Diamondback View Post
    15-1/4" in Stowed, 27" Deployed. Basically a standard 12.5" AR with a 10.5" rail other than the Cry Havoc QRB adding another inch. Bear in mind the "minus barrel" upper will be around 1/8 to 3/16" shorter once I get the tabs lopped off to properly mount the rail...
    Thank you for the measurement. Pardon me, I realize the length is almost the same as a regular unbarreled upper receiver which I should have measured myself. I don't know why I was under the impression this unit added any significant length.

    I understand the desire to copy the GAU-5 and have a minimum length, but with that measurement I find appeal in the idea of a pin&weld barrel. That would be about 16+3/4" on the fore half and allow the use of a stock. Most stocks cover the end of the tube and add a little length. Even the SBA3 brace adds something however small.

    Happy Thanksgiving.
    Last edited by Disciple; 11-24-22 at 17:05.

  7. #37
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    Happy Turkey Day to you and yours as well!

    Actually if I read it right, the QRB adds next to nothing to OAL, just kicks the handguard an inch and a half forward around the barrel. https://cryhavoctac.com/about.html "Min compliance" length would be around a pin-weld 14.7" with A2, but I'm not sure if it would fit in this case and then you get into the can o' worms about "rifle and loaded mags together in vehicle" in states like WA where Fish & Game think "only a poacher would have any reason for loaded gun in car." Keeping it pistol means it's covered by a carry permit, and potentially dodges FOPA requirements in states with reciprocity.


    In WA, the standard for "pistol" is "less than 16" and fires with one hand--if you can conceal one of those 10" Tommy Gun pistols with no VFG, you can legally carry it on your CPL here. Not a good idea and prosecutors jack off to fantasies of assraping a CCW Defensive Shooting case with so blatantly "un-sympathetic" an iron, but you CAN do it. This thing is meant almost purely as a Range Toy and maybe occasional "hotel-room defense" duty when traveling, but generally not a Serious Work iron even though I'm building to my normal "would I let my loved ones bet their lives on this in an emergency" standard.

    Another question as part of the "Product Improvement Program" concept, right now I'm starting to wonder if there's something already in the military supply system that offers better performance than the A2 FH in a similar space-footprint...
    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!
    --after Capt. Hector Barbossa
    Joe Biden is not, nor will he EVER be, my President. Psalms 109:8 #SauceForGooseSauceForGander #AllDemsArePedos

    LIFE MEMBER - NRA & SAF Not employed or sponsored by any manufacturer, distributor or retailer.

  8. #38
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    Now that the case and mag pouches are in...


    Boring messenger bag/manpurse, right?



    SURPRISE!



    But wait, there's more!

    Plan is four mags in pouches and a sling down here, subject to revision as needed--I need to borrow four GI mags from C.'s case for test fitting.


    EDIT: Four 30rd GI-type mags with Magpul pulls make a tight squeeze, but without barrel/FH and ammo this case weighs 7.8lb.
    Last edited by Diamondback; 12-02-22 at 23:14.
    Ye best start believin' in Orwellian Dystopias, mateys... yer LIVIN' in one!
    --after Capt. Hector Barbossa
    Joe Biden is not, nor will he EVER be, my President. Psalms 109:8 #SauceForGooseSauceForGander #AllDemsArePedos

    LIFE MEMBER - NRA & SAF Not employed or sponsored by any manufacturer, distributor or retailer.

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