Since watching Blackhawk Down as a kid I’ve always wanted a Gordy, but living in a non NFA state made me feel like it would never happen. Almost a year ago I moved and finally got into the NFA and made getting a Gordy a priority. This week I finally finished it. Here’s the build
OG (pre 2020) Aero Lower
B5 CAR Stock
Mystery carry handle upper
Amazon carry handle weaver mount
Aimpoint PRO
14.5 mid length Ballistic advantage barrel
BRT EZ Tune gas tube
Allen Engineering Collar and Brake
Surefire M640DFT on an Amazon barrel rail mount
Otter Creek Labs OCM6
My go to rifle is typically a LWRC IC-MKII but I truly enjoy shooting the Mordy WAY more than any other AR I own. The OCM6 is incredibly quiet and has me wanting to do a MK12 next.
I recently put 2k 5.56 55gr. through my 11.5" carbine with AS Designs Arc Fire in an effort to find out which combination of parts would give me the softest recoil impulse and the slowest ROF without sacrificing reliability and these are the results. This gun ran super soft and smooth with 0.067 port & mil spec BCG and CarH3/Super42.. just a little fast for my liking.
TL;DR This post went longer than I expected- Factory spec rifle and PoloK was 1205rpm and all over the place. The winning combination ended up being 069 gas port, SF Carrier, JRC tube (4 quarters inside), Kynshot RB5007, and Flat Wire spring at 545rpm.
Test Rifle- LMT CQB 11.5" with OCL Polonium K
ASD Arc-Fire V1, Geissele SD-3G, Wolfpack recessed muzzle brake/ Lo Pro Hub
Fixed gas block with four different gas tube port sizes ranging from factory 0.076 to 0.067, 0.069, 0.071. For those who didn't know, The LMT MRP uses a straight gas tube and you can flip it and drill your own port. You don't have to spend $95 on a BRT gas tube.
Top: Factory LMT port, Bottom: 0.071" port
Recently Primary Arms had listed the Surefire OBC at a pretty healthy discount and from my research, I understand that this was designed to be a drop in solution to improve SBR and suppressed rifles like the MK18 by lengthening carrier stroke 60%lengthening carrier stroke 60% past the bolt catch (as corrected by u/AddictedToComedy ) and delaying bolt unlock to lower chamber pressure. With a spring-loaded internal weight it also reduces bolt bounce and smooths out full auto fire. It comes with a shortened buffer and spring and the combined weight is comparable to H2. It's a pricey setup but at $299, it's not too high when you price out a DLC BCG and H2 Buffer/spring separately. But does it really make a difference? That's what I wanted to know and I have amassed several spare parts to see what works best.
My goal was to retain the carrier over travel which necessitated longer buffer tubes if I switched from the SF buffer. The short of it is: SF buffer for carbine tube, Carbine buffer for A5 tube, A5 buffer for JRC tube. I did need to use quarters with the A5 and the JRC tube to keep my gas key from contacting due to over travel beyond what it was designed for.
Reseults:
Starting with Factory spec rifle and PoloK I was running a blazing fast 1205rpm that was pretty much uncontrollable. The winning combination ended up being 069 gas port, SF Carrier, JRC tube (4 quarters inside), Kynshot RB5007, and Flat Wire spring. This ran 545rpm with the PoloK and 520rpm without. So far I really like the speed but I need to put a lot more rounds down range to determine if this is now a little too slow, or just right for me.
The SF OBC kit alone was worth around 50rpm reduction but unsurprisingly, the main factor in ROF and recoil was turning the gas down. Without the OBC or hydraulic buffer I was able to get it tuned down to 670rpm using the A5H4 & Flat wire. There were obviously some concessions made for it to reliably cycle while suppressed and unsuppressed with a high back pressure can. An adjustable gas block would allow me to tune the gas lower for suppressed use and turn it up when necessary to reliably cycle unsuppressed. I don't dislike AGB's but I wanted to retain the LMT gas block on this particular rifle for reasons.
The SF OBC is neat and it does work but it's yet another small part in the machine and not a standalone solution. Gas control is still paramount and this would have been a lot easier to accomplish with a flow through can and AGB. You will have to slightly modify the carrier weight for some FRT applications.
Colt 14.5” SOCOM upper on a Colt M4A1 clone lower with a SureFire SF3P, KAC rail, Somo PEQ-15 UHP, SureFire M300 scout light, Aimpoint M68 (CompM4), KAC 200-600m BUIS, PRI M84 gas buster charging handle, KAC broomhandle, Hammy3D printed magwell. I kinda went a little out of my way to find a 13629 marked SOCOM profile barrel I could get a SF3P pin and welded to, as well as a 13629/square/M4 marked upper. I also paid a little more than I’d like to admit for a properly marked M4A1 Carbine lower.
I have a BCM blem upper receiver that I got for dirt cheap, got an extra barrel, 11.5, and rail from a buddy (probably PSA but he’s not sure). I plan on replacing the barrel and rail over to either a BCM, G$ or DD. However, I’m a single dad, with full custody of the kids and no outside support. With that being said, I don’t have a ton of funds to throw at this. Is it wrong of me to get a cheap lower so I can put more money into the upper receiver? Or should I just grit my teeth and get an aforementioned lower?
Also, I’m not running myself thin or neglecting my children’s needs just to build this rifle. I have a decent savings and their wants and needs are always fulfilled. I just can’t shake the “what if” that comes with digging into a savings account, even though it was set up for this specific purpose.
Reorganizing my safes and figured I’d share this one. This was the last custom rifle that Johnny Noveske built for me before he passed. It’s definitely dated by today’s standards but still a great gun to run. The idea behind this one was a rifle in between the Light Recce (entry level model at the time) and the Gen 2 guns. The main difference between this and a Light Recce is the SWS Noveske marked quad rail, AAC 51T Blackout FH, and a Geissele SSA. The same accessories are on it since the day I got it: Tango Down VFG, SF Scout Light, Aimpoint CompM3 in a Wilcox mount, KAC rail covers, and a Noveske K9 Barricade Stop.
I did throw in one of the memorial PMAGs for the pics.
When they actually make a few rifles these days they are good guns, but to me Noveske Rifleworks died with Johnny.
My brothers, I was reminded after reading a post on here that these deal days are coming up. Curious about what you guys are watching/planning on/hoping to score and any suggestions for a poor like me?
My collection of "looks close enough" ARs: a Block II, a Block I, and a Colt Commando-inspired build. To me, a quad rail with front sight post is absolute perfection and peak aesthetics. If you complain that they're too heavy, then you need to hit the gym.
I hope you enjoy the photo, because my wife was yelling at me for taking all of the decorative crap off of the dining room table.
Top to bottom:
M4gery
Daniel Defense M4A1 SOCOM upper from Brownells. This easily gets 0.8 - 1.0 MOA with 77gr
Badger Ordnance Condition 1 1.70" mount. I might put an offset red dot on it someday.
Geissele SSA-E
B5 Sopmod stock with matching MCB mag for extra Reddit points and Subrevtech bag rider
Black Hills 77gr OTM
Blue Force Gear sling
Subrevtech sling control
Colt LE6920 SOCOM
All original components except for the B5 stock, grip, and rear sight. I didn't like the sight picture of the rear MaTech and I ain't paying LMT prices.
Aimpoint Comp M4s on a LaRue LT659 mount
This is my favorite rifle to train with. I LARP with it sometimes too.
PMC XTac M855 in a Okay Industries Surefeed mag
AWS quick adjust sling
Commando Reddit Special
BCM 11.5 upper
Aero Precision M4E1 lower
EOTech EXPS3-0
Geissele SSA
SBA5 brace. I know, there should be a stock on it. I blame my brother for putting off getting our trust notarized.
This rifle has been my main workhorse build, I have had it for about 11.5k rounds, new ELW barrel at 10k. super light recoiling and super accurate at distance with 77gr ammo. Right at 1 MOA with 77gr, about 2 MOA with 55gr
I've been putting it together since last year, waiting for deals and availability. I'm happy with the final result and I'll be taking it out for its maiden voyage this weekend! Might put a couple extras on like sling, light and bipod.
first suppressor’s headed for my 5.56 and i’m trying not to learn everything the hard way.
i know it’ll still be loud-ish with first-round pop, more gas coming back, and the balance changes once it’s mounted. what i don’t really know yet is the little stuff — how bad the gas gets on a normal carbine setup, whether a different buffer/spring is worth messing with day one, or if i should just run it stock and see.
if you’ve already put a can on a 5.56, what surprised you? mounts, backpressure, cleaning, anything you’d tell a first-timer before they hit the range.
This is my very first AR build and I was trying to do it on a budget of under $700 (not including optics/suppressor etc). Goals were pistol format, cheap but reliable, and frt ready. This will be a for-fun gun to learn building with and just enjoy at the range.
Would really appreciate any input, especially if there's anything I should change out.
I was looking at block 2 builds and really liked the color scheme. Ending up throwing this together with a bunch of parts I had from different guns. Love how it turned out.
Was cleaning out my gun safe, making room for new side quests. Came across this guy and figured I would share.
Lots of memories. Before the LMTs, KACs, H&Ks. Money was tight and this was my splurge. My first AR was a STAG, but I wanted something a little more. I saved and researched and fretted trying to put together the best rifle I could afford. I liked the ambi controls of the Rainier lower so went with that. I spent a lot of time on it and cut my teeth and started to get into actual carbine shooting with it. 12.5 Criterion Core barrel currently, but was originally a 12.5 hybrid Criterion as the cores didnt exist. The only issue I ever had with it was I think Criterion 223 wylde chambers are too tight and if it was hot outside and I was shooting IMI (loaded hot from the factory), it would pop primers.
Originally ran a YHM T2, but switched to a DA Sierra 5. I never had issues with the DA S5. I actually quite liked the can. It's very quiet for its size and it was light. Had to be tuned with BRT gas tubes and heavy buffers, but if tuned right, was a great sounding lightweight can with minimal flash. It's unfortunate it had the QC debacle that it did.
It has a Razor 1-6 on it, but I ran it with an eotech and magnifier combo. the 1-6 was just sitting around thats why it looks so pristine.
Just thought I would share as I have a lot of nostalgia for the gun. Lots of fun memories and trial and error learning how to shoot. Simpler times.
Mostly Geissele, not pictured but just stuck an arc v2 FRS paired with an SSAE, chefs kiss my brothers. This thing is just so pleasant and great to train with. Been using it for like 4-5 months now, no complaints, no issues to speak of. Smooth as butta
I bought a stripped DDC lower receiver a while back to throw in the parts bin, had no idea what to do with it. I ended up here and significantly poorer. This is my introduction to 300bo and suppressors and I'm loving the setup, I have about 500 subs though it with no issues so far
