Building ARs Below CINCHOUSE Radar

Background: I have been slowly building two ARs, a M5 and M4E1. Slowly because I’m trying stay below the CINCHOUSE radar. She is a perceptive woman that can check our bank account at the most inopportune times. She doesn’t comprehend the upcoming Zombie Apocalypse…

Got a great deal on two AP stripped lower receivers in December 2019. Aero Precision has been portrayed as a car parts manufacturer for my Jeep. Paid for a SilencerCo Hybrid 46 Suppressor through layaway (lower cash payments so lower radar signature). Tax Stamp check was cashed in early March. BATFE sounds like a utility company, right? I want to go long on these two builds so thinking 20" barrel length for both 5.56 and .308. Suppressed when the blessed day arrives.

Status: M5 Lower is complete with a Magpul PSR 3.0 Stock and rifle length buffer. Radian ambi-selector. Velocity 3.5# trigger. Hogue grip. M4E1 lower is almost complete. Magpul UBR 2.0 stock. Radian ambi-selector. Velocity 3.5# trigger. Hogue grip. Trying to figure out whether to go A5 of carbine buffer on that one. Any suggestions?

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VLTOR A5’s are really nice from what I hear. I would say to go for it. The BCG and the buffer are 2 of the most important parts of your rifle!

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I have a VLTOR on my 16" M5 and it is running strong. I’m using a .308 AP Carbine length buffer assembly. Pulled it apart tonight and found the spring in need of replacement.

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Have you heard of HeavyBuffers.com? Seems like they are the only bunch that has A5 buffers in stock. Ordered an A5 H3 Buffer today. Got the UBR 2.0 Stock installed. Ordered a Sprinco Green Rifle Spring.

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Nice I have heard good stuff about springco springs. Personally I just get BCM H buffers for mine. I also have not heard about that site.

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BCM and VLTOR were both out of stock. AP is sending me a new spring for the 16" .308 for free but ordered a Sprinco Orange Spring for it, also. Having a tough internal debate on going with a 20" .308 AP Upper for the M5 build or taking the plunge and getting a 6.5. Found out today that Quantico Gun Club has access to 1000 yd. range… $120/yr membership.

Never heard this term before, LOL its great!

I’d like to know more about this?

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About the Gun Range or staying in good graces with the missus… I have been doing a lot of extra self-motivated chores like turning the garden bed, vacuuming, cleaning basement and garage to help reduce animas when I work from home. I can also intercept packages easier without deep scrutiny.

https://quanticoshootingclub.com/

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Mainly about the range, but staying under the radar is good too!

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My brother, cash is king if you can access the $$$ machine I can order and have shipped to your door.

On bbl length if you are going to suppress go with an 18" 308 tube and a 16" on the 223 unless you want a pistola then go 10.5" with a nice adjustable brace. I would choose the latter for the AR.

I’ve been flying under the radar from COMNAVGODHOME by having my bud in PA buy and have shipped to my door for YEARS. Since I did/do T&E for various companies I have had random “stuff” show up with my name on it for a long time. “XYZ company sent me this to look at so I’ll have to install it and then get a range day to test it or two. Then I have to sit down and write an evaluation.”

I make a habit of pulling $100 per paycheck out of the ATM for “WAM” (Walking Around Money) and stuff most of it in my locked tool box and keep the $100 +/- WAM in my wallet flush.

Cheers,

Craig6

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@Craig6 Thank you for the offer. As you can tell by the photo of my completed lowers, I’m kinda committed to an M4E1 A5 build…just trying to sort out whether to go .308 or 6.5 Creedmore on the M5. The Creedmore wears out barrels twice as fast but it can get me out to 1000 yds without 2x the Kentucky windage. I really don’t want to buy more reloading dies though…

I have an Armalite 20" non threaded 308 tube that you can use till you get/decide what you want. I have personally shot a 6" group with it at 1K and I have the load for it that runs out of a regular mag.

Cheers,

Craig6

Thanks for the offer, brother. So a 20" .308 vs 6.5 Creedmore? Got to take my 16" 5.56 out a couple weeks ago and think I found the right load for it:

62 gn Hornady BTSP.

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So not being a Fudd, why is the 6.5 Creedmore such a popular caliber? It eeks out .308 stats past 500 yds pushing a 140 gr pellet, burns out barrels twice as fast and costs more to operate… Is it just for punching holes in paper or can it knock down zombies at 1,000 yds?

I got the A5 buffer in and it is nice. Machined from Stainless steel and weighs in at 5.3 oz. So much for MSR interchangeability…I have 4 different buffers for four different rifles. Another thing I’ve been reading is you want a new bolt for a new barrel. Can’t swap bolt assemblies between guns…

This how I was thinking about rolling:

M4E1 - https://www.aeroprecisionusa.com/m4e1-enhanced-20in-223wylde-fluted-complete-upper

M5E1 - https://www.aeroprecisionusa.com/m5e1-308-20in-rifle-ss-complete-upper

Thoughts?

@Jeff-A1 Ballisticly the 6.5 Creed was designed for F-Class or what ever other moniker it has nowadays as a wind cheater. The long (relatively heavy for caliber) 140’s cut the wind better so if your wind reading skills are your weak link it helps. As you note the tubes get burnt out much faster I have heard only slightly less quickly than a 300WM. Will 140’s take zombies at 1K? Mebby, it will definitely be on fumes but still going faster than a rock.

Dunno about not swapping bolts between platforms. I ensure that all my AR sticks can do just that on purpose. It is easier to hot swap if all you need to do is push two pins tho.

The uppers look nice but a bit spendy without a matched bolt which has always been the standard for assembled uppers in that they came fitted and fired with a bolt assy. Not that there is really much fitting to do on an AR platform.

Cheers,

Craig6

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Thanks for the advice on barrel life, brother. I’m not interested in F-Class…just zombie abatement.

Being retired military we get 10% off from AP. They also combine other discounts with the military discount. The hard part is having the duckets available when the uppers are on sale and available. They sell out within an hour once the sale is posted. Timing…

Bought the following for M4E1 build in black M-Lock:

https://www.aeroprecisionusa.com/m4e1-enhanced-20in-223wylde-fluted-complete-upper. Also have a SilencerCo 1/2"-28 ASR Muzzle Brake waiting for install along with an AP Nitride BCG. Now for optics…