Separate BCG for each upper
One BCG shared between multiple uppers
Don't share -- one upper and BCG for each lower
I think the NFA is unconstitutional as well, and because of that I encourage everyone to express their right to own and use a slide fire stock, or a sig brace (or both) as a slap in the face to the NFA. The more products we have like this in the hands of citizens the more the NFA becomes a joke that will be seen as such. The slide fire stock on a rifle with a bipod becomes very effective if used in the prone position pushed on the back, top portion of the upper receiver, and once you use a sig brace on a pistol you will wonder why you even need to do an SBR.
Xacex what you mentioned about the NFA is the reason why I plan to get a sig brace and build a pistol in the future even though I think it is fugly and overpriced. I feel the same way about the NFA. The history of how the SBR and SBS regs came about is rather interesting and says alot about the fudds in government.
They were on sale at Rockwellarms.com over the weekend. With a coupon code they were under 100$ shipped. Palmetto has a good price on them as well. 109$ is not bad.http://palmettostatearmory.com/index...sb-ar-blk.html Don't pay the 150$ + vendors want. You can pick them up for under 110$ if you look around. Ebay is a good source believe it or not. Picked one up from there for 109$ shipped. The look will grow on you once you try it.
I see SIG is running a promotion on the braces now for $125 free shipping and a free rifle bag. I would buy one but I just ordered a complete upper and a lower last week. The deals seem to always come when I am not ready to fork over the cash.
http://sigsauer.com/Promotions/CurrentPromotions.aspx
Without a flash guard / thread protector on, my .300 AAC pistol with a 10.5" barrel is 25 1/2" long. With the thread protector, it's 25 7/8".
Haven't decided on sights for it yet though. I'm not inclined to spend $400-700 on an AimPoint when a $50 TruGlo would probably just as well serve my particular needs. I still can't decide whether to stay with iron sights or go with optics. I've never tried any of the red dot scopes though, so I don't know if I would like them.
There is a reason that higher end holographic sights cost what they do. I have a few of the cheap ones. The dots are more like an octopus then a dot. They're fine for close range blasting. But for any type of long range or precision shooting they suck. A 300 blackout upper is looking really tempting at the moment but it would be for no other reason than to have it. It would be a 16" upper which defeats the purpose of the round. But I don't want to wait a year to be able to shoot it.
Keep each upper with its own BCG so there is less problems. The BCG will cycle and mate to the barrel as it should and changing them can lead to trouble.
I have an Aimpoint PRO on a Larue mount and both are top notch quality. The Vortex Sparc and Sparc II are good red dots at less than half of what a PRO costs (and smaller too) The Primary Arms red dots are also an option for even less money and better than a Truglo. For an AR pistol it is best to go with one of the small micro redot scopes IMO to try and cut down on the size/weight.
I use a Vortex Diamondback 1.75-5x32 on my 8.5" blackout pistol. Like this one... http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
and the mount from Nikon http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1
This is a solid combo that is not to much bank. The scope has a lifetime guarantee, and between my Nikon's, and Vortex I like the Vortex better. I have some of the cheaper red dot/ reflex sights up to about 200$, and they just do not compare to the Eotech's or Acogs I have tried. They just cost to much for me. I get the accuracy, at a weight disadvantage, but I also save over 300$ with the combo at a minimum.
It makes for a nice black timber gun for hunting. Nice and light with quick acquisition of targets at the low power level. In dusk or dawn scenarios the reticle reflects gold against black even without being illuminated, and is brighter than just a holo sight because it gathers light.
I have heard good things about the primary arms red dots. If you are set on going that route I would give one of those a try, or at least consider one before plunking the change down on the most expensive options.
This thread has me thinking I need more uppers. Of course I ALWAYS need more uppers, and magazines, and ammo...
Well, I finally completed my .300 AAC build (other than deciding on sights). Here's a photo of it next to my 5.56 handgun build that is currently configured as a rifle.
As you can see, I decided to go with a separate lower and BCG for the additional upper.
Sorry for the crappy photo, but it was late and I was too tired to set up a REAL camera for the photo.
Last edited by NavyVet1959; 08-19-2016 at 10:43 AM.
I envy you guys. Every time I get an upper it only takes about a month or so before I can't stand looking at it all dejected in the safe and get another lower. Hell, lowers are almost the cheapest part anymore.
Even my 50BMG upper finally got its own lower.
"Just try to remember which end makes the bad guys go away."
Dedicated BCG for each upper. I verify headspace at build time and consider it a dedicated package. Switching BCG's (IMHO) requires checking headspace in every weapon you switch between.
I don't have enough $$$ to have more than 1 of anything AR, although I would like to have an upper with a 20" and a 1 in 9 twist.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |