
In this video, Caleb from Brownells walks through the full build of what he calls the Ultimate Backpack Gun for 2025. Designed around the Law Tactical AR Internal Carrier (ARIC) and the new Law Wrap 1913 adapter, this compact AR setup is perfect for discreet transport and quick deployment. Follow along as Caleb assembles the full rifle step-by-step, from lower to upper, and explains each component choice along the way.
Chapters
00:00 – Introduction and Concept
00:47 – Law Tactical ARIC and Wrap System Overview
02:06 – Lower Receiver Selection and Setup
03:20 – Trigger and Safety Install
05:01 – Greasing and Assembly Tips
08:05 – Ambidextrous Selector Setup
09:33 – Grip Installation and Detent Greasing
11:17 – Selector Lever Pin Installation
12:03 – Installing the Law Wrap Adapter
14:10 – Takedown Pin and Spring Fitment
16:52 – Proper Torque for Wrap Flange
17:58 – Set Screw Installation Warning
19:17 – Reinstalling the Rear Plate and Function Check
20:11 – Upper Receiver and Barrel Setup Begins
21:29 – Brownells Lightweight Barrel Specs




🤔🤔🤔…
"The included tool"… is designed to "deform" when proper torque is reached…
😉
🤔🤔🤔…
"ARIC" = garbage…
Novelty but not reliable enough to depend on it helping you stay alive…
🙄🤦🏾♂️🙄🤷🏾♂️🤨😐🫤😑🥱🥱🥱🥱
This is an Aero Precision lower. I noticed that you did not put the tiny little screw in that holds the spring and detent for the rear take down pin. Just for speed?
Is the ARIC system reliable? I have seen reports that it can be troublesome.
Everything about this dude screams “if you want free guns just wait until I’m in the gas station grabbing a white monster energy drink and smash my passenger window out.”
Should have built a shorter rifle.? 300 blk out 9 inch barrel suppressed
Nice work, as always. Thank ypu.
I want to do one of these builds. Is there a parts list located somewhere so I know I'm getting everything I need to complete the build?
Anyone think I can fit a standard 14.5 rifle with a A2 muzzle device in that bag if I separate the upper and lower? Caleb has the silencer and the additional length from the folder
You guys could do a whole series on just packs/bags. I know it's not REALLY you guys' thing, but a series of different bags and packs showing what fits in them, what doesn't, how they're laid out, different little add-ons and stuff, different use cases, etc?…I'd watch the hell out of it. It's completely unexplainable and weird but I love bags/packs…
Nice SBR. One option is to add an adjustable gas block that allows the gas to go forward and or even the same with a piston version. IMHO. Thanks! P.S. because you're a lefty why not use a left eject upper?
Man I want a video of just all the tools in that awesome case and how’s its all setup. 😂
That was the fastest, most trouble-free gas tube installation I've ever seen.
This man is a AR god not a Back Pack God – that back pack is trash -super large bag 💼 you get loss – by the time you get your AR out you’ll be long gone
20 minutes to open the bag lol 😂
20 minutes to put the suppressor
RIP 🪦
lol
Love the videos, thanks
This is the Bob Ross of gun guys!
The back to school special
You build it backwards if you have to shoot it from the left side
Anyone catch what knife he's using?
Would you be able to install a houge system to make it fixed mag?
So… does Brownells sell this kit with the tools? I'm pretty sure it would sell out pretty quick since you could assemble it while watching this video.
Why would you guys make this video right on the cusp of Back to School season?😅 You guys have a weird dark sense of humor.😂
The law tactical aric and the RAP is over $700 alone
@56:40 YEEAH BUDDYY!! 😱😂
The ultimate backpack AR to date is the FoldAR.
Cool build, but would be even better with the light tucked even closer (modlight button)
If you mounted the light on the opposite side, would result in a slimmer build since its same side as the folded stock. Then use a slick upper (no fwd assist) to cut down on bulk sticking out ejection port side
How did you come by an Aero Precision receiver?
49:00 I didn't have an hour to watch the whole video, but I am interested in Caleb's toolbox. Anyone know make & model?
You didn't mention the Arisaka Offset Scout M-Lok Mount for the light
(I only noticed it because I just bought one 🤣)
Rifle is cool but I don’t know about ultimate back pack rifle
Dont know what is better, the technical side or the humor. You have a gift for it brotha.
great video as always although I feel like something is off. Hope everything is going well with you.
Caleb…why use an AR wrench and not a 3/8" rachet to install the threaded flange? You had the armorer's tool, which has a 3/8" square on the end…. That's 5 minutes I'll never get back… 🤯
All the tools that you sale and you don't show proper gas block line up and dimple the barrel 😢