r/ar15 • • 1h ago

Block 2

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99 Upvotes

Of all the blasters I’ve built and used over the years, this has to be my favorite. 14.5 is just a good sweet spot, with the 11.5 being a close second.


r/ar15 • • 12h ago

Long time listener, first time caller

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209 Upvotes

Just checking in with my 11.5


r/ar15 • • 13h ago

How we feel about the DOT

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202 Upvotes

Not sure how I feel about it.. kinda still prefer the PA slx 1x that was on there before..


r/ar15 • • 6h ago

10.5" SOCOM vs Pencil

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50 Upvotes

I'm buying a Faxon Ascent 10.5" upper to run suppressed for a tactical competition. Gonna replace a gas block to Superlative Arms. My goal is to minimize weight as much as possible, since there is a lot of running and physical activities (like carrying a 100lb mannequin) and not so much prolonged shooting (I'm unlikely to shoot more than a mag a stage).

The upper comes with a SOCOM profiled barrel, but the same store carries a pencil profile barrel for about $350. Is the upgrade really worth the money in your experience? Looks like there is less than 100g (0.2lbs) difference, so I'm curious if you feel it at this barrel length.

I'd rather decide right now, because:

— the barrels might go out of stock and in Poland barrels/uppers aren't easily available

— pencil and SOCOM have different gas journal sizes, so I'd rather buy one cry once in this case


r/ar15 • • 17h ago

Switching to your underwear gun is faster than reloading

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256 Upvotes

r/ar15 • • 15h ago

Alright boys. Need some help

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101 Upvotes

First time building a rifle myself. I did everything by the book. It’s a 10.3 mk18 mod 0 ish, and after getting it together I lubed everything I was supposed to, and cycled some rounds and ejected them. (Haven’t fired it) and the bolt isn’t locking far enough to the rear. It’s resting on the casing.

Bad attitude lower
LAT frt
Guisselle super 42
H3 buffer
Full auto BCG


r/ar15 • • 14h ago

*chuffed piston noises*

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83 Upvotes

r/ar15 • • 1d ago

16-14.5-11.5

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516 Upvotes

16 I keep as a loaner for anyone wanting to shoot or compete along in the tac games. Basic build. 1-6 strike eagle. OCL polo K

14.5 build is my main 2 gun / tac games run. NF nx8 with an RMR HD offset. SAW Ekron

HK is the one I find myself using more for classes. Boring ok Eotech exps. BT SRBS


r/ar15 • • 52m ago

What are some weapon light configurations that are unconventional but get the job done?

• Upvotes

r/ar15 • • 12h ago

MK18 Build At 18

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35 Upvotes

Surefire 3 prong muzzle
Eotech XPS 3-0 Tan
Tango down stubby
Surefire turbo scout light pro
Unity riser
B5 stock
Blue force vickers
Surefire UE tail cap
Surefire SR07 pressure pad
Surefire RC2
Griffin armament SN-ACH G2
Magpul RSA female
DD FDE Upper
BCM Castle nut and End plate
Springy Green A5 / M16 Standard power buffer spring
Vltor RE-A5 Receiver extension
Vltor A5 H2 AR-15 Buffer 5.3 oz - A5 Buffer
LaRue Tactical MBT-2S AR 15 trigger straight bow
MOE K2 Gripe FDE
CMMG AR-15 lower parts kit
ERGO 18 Slot Low-Pro Ladder Picatinny Rail cover


r/ar15 • • 11h ago

Me and bros

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30 Upvotes

r/ar15 • • 1d ago

Who still likes 16”?

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252 Upvotes

My 16” DDM4V7. Yesterday i posted 11.5” vs 14.5”, today but im giving one of my favorite gun some love


r/ar15 • • 23h ago

Go outside

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198 Upvotes

r/ar15 • • 12h ago

I Think I’m Done

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24 Upvotes

Might swap for a cantilever mount and add a piggyback red dot also in FDE. Haven’t found any for a reasonable price though.

All Aero minus the BCG and LPK - both BCM. Leupold MK3HD 4-12 TMR illuminated.


r/ar15 • • 1d ago

Finish the sentence. If the ACOG was new in 2026...

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416 Upvotes

r/ar15 • • 23h ago

Is the ACOG worth it?

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171 Upvotes

I’m looking to replace the red dot rifle. LASIK doesn’t last forever I guess and the fixed magnification on a small optic powered by the fuckin sun sounds great. Did anyone replace the ACOG with something with the times or do you still like it? I like the EOTech Vudu, but that setup is primarily for long range fun and is just too heavy for my liking.


r/ar15 • • 11h ago

I can't stop

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16 Upvotes

I can't stop building trash budget AR's in every different caliber. I think I have the same itch that pokemon card people get. Someone help.

Pictured is -

450 bushmaster

50 beowulf

300 blackout

22 arc


r/ar15 • • 1d ago

Ackchyually 18-14.5-10.3

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171 Upvotes

The urge to turn my SPR into a Mk12 is quite strong


r/ar15 • • 3h ago

Looking for something like a "Specialist Covert Single Rifle Case"

6 Upvotes

Hi, I'm looking for something like a Savior Specialist Covert Single Rifle Case that will fit my 16.5" MR223 and that I can carry discreetly like a backpack. Since my rifle doesn't have a folding stock, the case needs to be at least 950cm/37,5" long on the inside.

What I don't want is a backpack where you can immediately see what's inside. I just want to go to the shooting range and back without every neighbor/person knowing about it.

TIA


r/ar15 • • 19h ago

Actual budget build. KAK/PSA/Holsun/OCL

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73 Upvotes

r/ar15 • • 19h ago

I just wanted a wolf grey sopmod man...

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66 Upvotes

Like a college student pledging for a frat, I got a little experimental last night. I dyed my FDE BCM stuff grey. Not quite what I wanted. I'm probably going to put FDE back on. But I figured I'd let it ride for awhile to justify the 10 minutes of work I put in. BCM pls make wolf grey.


r/ar15 • • 1d ago

Who is Daniel and what is he defending?

344 Upvotes

r/ar15 • • 17h ago

“Probably does most things” Rifle

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34 Upvotes

“Do it all” Rifles are a myth so heres one that probably comes close to it (for when I am larping in the backyard).


r/ar15 • • 20h ago

First AR

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62 Upvotes

Budget Blaster:

Ruger Harrier
OCL Polonium K
Comstock Armory Compact MB
Comstock Armory LPA
Vortex 1-8x Strike Eagle
ASDesigns Arc Fire v2
Tromix H2 Buffer
Printed Accessories
SKRP Sling
Cheap amazon light


r/ar15 • • 1d ago

I Created a Table of the Whole 11.5" 5.56 AR Market

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148 Upvotes

The Complete 11.5" Table

In my pursuit to understand what my options were, I decided to make a table. Of everything. The table contains, to my best ability, all complete guns, complete uppers, barrels, and suitable handguards currently offered, with links. I include all the important info like price, weight, barrel info, gas systems, buffers, BCGs, handguards, upper & lower receivers, etc. I also include my own personal thoughts and notes, which you can take or leave as you see fit.

I believe this will be helpful to the community at large to get an idea of who makes what and what our options are.

Please let me know if I missed something or if something new gets introduced, as I will keep updating this table accordingly.

All the best!