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Build guide for non-nfa?

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2 hours ago, Jdoug075 said:

does any 1 know the exact oal of a 10.3  barrel with a surefire 3 prong pin and welded would be with a milspec buffer tube????

Doing a little fuzzy math, it should get you to just over 27”

I know you can pin it to a 13.7” barrel to get to 16” or 16.1” so that giving you 2.3-2.4” in added length on any given barrel. With a 10.5” barrel and stock extension, you are at  24.9” so with a pinned SF, you should be at ~27.2”

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thx. btw im thinking of doing a geissele mk18 clone-ish build. URG-I Complete, Near Clone, 10.3" Variant, 5.56MM

im gonna need to have the surefire flashider pinned and welded. this should be a LEGIT legal build as far as im concerned.

puting on a sba4 brace and a magpul vfg i found in my junk drawer

if i fall short i will just ad a vltor a5 but i dont think i need too

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23 minutes ago, 0Jeep4 said:

@Jdoug075

Where’d you find the vltor A5 buffer, been looking around appears, sold out everywhere. 

for some reason, they have the 7 positions a5 instock everywhere. but NOBODY has the RE-10/A5SR which is the 6 positions, in stock. 

the sba4 brace that i have on my BCM 11.5 build fits almost flush (1/2 inch gap) when fully collapsed with RE-10/A5SR 6 position.

i also have the A5 7 position, but theres an inch or more gap between the brace and the castle nut when fully collapsed.

i bought my RE-10/A5SR 6 postion years ago but forgot where. i just looked every on the internet and its out of stock. dunno why

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11 minutes ago, 0Jeep4 said:

@Jdoug075

Thanks for the info, just wanted to make sure I wasn’t missing it somewhere. 

correction. the brace does fit flush with the 7 position. just tried it now but it was stiff as hell. plus it does not click in all the way in. you have to jiggle the stock in and out alittle for it to click in the most collapse position. with the 6 position it clicks in smoothly when fully collapsed

i dont know. these  braces are wierd with some extension tubes. u gotta do alittle trial and error to see what fits when you by an A5 extension

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 I bought the sb3 with the tube, but I think I’m going to try and do 11.5 no pinned device, so I’ll probably need the extra length from the tube to hit the magical number. I’ll just order a back ordered one and wait on it, see what happens worse case it ends up in the parts pile that somehow is always growing.  

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7 minutes ago, 0Jeep4 said:

 I bought the sb3 with the tube, but I think I’m going to try and do 11.5 no pinned device, so I’ll probably need the extra length from the tube to hit the magically number. I’ll just order a back ordered one and wait on it, see what happens worse case it ends up in the parts pile that somehow is always growing.  

ya. my bcm 11.5 came up 25 7/8 oal with a milspec buffer tube. you can get away using the 7 position a5. just when u fully collapse forcefully, you might have to wiggle it out 1/4 inch or so to have it fully click in. with the 6 position though, i can forcefully collapse the stock and it will click in smoothly. kinda hard to explain

buts thats just with the sba4 brace. other braces might be different

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On 10/5/2019 at 6:12 AM, Jdoug075 said:

does any 1 know the exact oal of a 10.3  barrel with a surefire 3 prong pin and welded would be with a milspec buffer tube????

A 10.5 barrel with pinned surefire flash hider with carbine tube will be 26.75. A full 3/4” over. The 10.3 pinned and welded will make it over 26” OAL for sure.

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On 10/4/2019 at 1:56 AM, Jdoug075 said:

i did a bcm 11.5 inch build with a milspec receiver ext. got 25 7/8 inch so i was short. i just threw on a vltor a5 buffer system in and now im over 26 inches. didnt need to pin and weld my muzzle device

I was looking at a 11.3 inch barrel with the A5 buffer tube. Will that meet the 26” requirement?

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On 10/6/2019 at 8:03 AM, 0Jeep4 said:

@Jdoug075

Where’d you find the vltor A5 buffer, been looking around appears, sold out everywhere. 

A5 with buffer is in stock at SKD.

https://www.skdtac.com/VLTOR-A5-Bundle-p/vlt.308.htm

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15 hours ago, CapGuns&SnapsKid said:

anything below an 11 or 11.5 inch barrel you would need to pin and weld your muzzle device and just use a standard receiver extension. using a bcm 11.5 with a standard buffer tube got me 25 7/8 of an inch. other 11.5 barrels may be different but thats what i got.

for a 10.5 inch, just using a vltor a5 will not get you to the minimum length.

i would just pin and weld your muzzle device on a 10.5 to get you the length. unless you want the vltor a5 system which is an upgrade.

just be aware of the 2 types of a5. they got the 6 and 7 positions, re a5 and re 10 a5sr respectively

some sba braces may be finicky with the vltor extensions whether it be the 6 or 7 postions so it will be a trial and error.

i use a sba4 with a re10 a5sr and it fits pretty good. just an 1/8 of an inch gap between the castle nut and brace when fully collapsed. not a big deal but might be for people with OCD. 

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10 hours ago, Jdoug075 said:

anything below an 11 or 11.5 inch barrel you would need to pin and weld your muzzle device and just use a standard receiver extension. using a bcm 11.5 with a standard buffer tube got me 25 7/8 of an inch. other 11.5 barrels may be different but thats what i got.

for a 10.5 inch, just using a vltor a5 will not get you to the minimum length.

i would just pin and weld your muzzle device on a 10.5 to get you the length. unless you want the vltor a5 system which is an upgrade.

just be aware of the 2 types of a5. they got the 6 and 7 positions, re a5 and re 10 a5sr respectively

some sba braces may be finicky with the vltor extensions whether it be the 6 or 7 postions so it will be a trial and error.

i use a sba4 with a re10 a5sr and it fits pretty good. just an 1/8 of an inch gap between the castle nut and brace when fully collapsed. not a big deal but might be for people with OCD. 

Thanks for the reply... so it sounds like all I have to do is pin and weld the muzzlebrake on a 10.5 and or a 11.5 with a standard mil-spec buffer tube. 

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@CapGuns&SnapsKid

yes pinned welded with standard buffer tube and 10.5 or 11.5 barrels

I went with a 11.5 and the vltor re10a5sr it’s the six position tube. My thought process for this was id like to take advantage of all the benefits this type of weapon offers in our restrictive state. I wanted to be able to change muzzle devices at will. 

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