Gunsmithing Build am AR repair kit

KaRwithaScar

Sergeant of the Hide
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Nov 20, 2019
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I have begun putting together tools and vital replacement parts for the AR-15 platform. I am just looking for a variety of input so Im not missing something important I havnt purchased already. Thanks
 
Barrel wrench, stock wrench, barrel nut alignment gauge, gas tube roll pin punch, brownels receiver action block and lower receiver vise block, trigger fitting pin for my geissele trigger, as well as a spare bolt and spare complete trigger group.
 
Don’t forget a Geissele reaction rod. You will def need it if removing/installing barrels.

Id buy both (one for AR15 and the other for AR10).

If you own a KAC rifle, get the Knights Barrel Extension action wrench.
 
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Uh, you're probably gonna need bolt parts and action springs vs. takedown pins and shit like that. Nice to have some on hand, but it'll be extractors and ejector springs and firing pins, buffer springs and maybe a bolt or two over time.

Weapons brought back by SF from the sandbox were never missing any of the above shit. They did however have broken extractors, broken bolt lugs and weak or fucked up springs now and again. A few even sheared off the firing pin retaining pin, so I'd keep one of those in your small spare parts you keep in the field cleaning kit too.

People laughed at the Magpul spare bolt carrier for the MIAD grip... But of all the shit you can put in one, THAT was the singular item that could save a life or change the outcome of a firefight, because when those rifles went down for bolt issues, they'd push 'em until they stopped, then it was game over, time to go home. Gotta admit, the few rifles I'd depend on, they have spare JP bolts w/ pins and whatever bolt related shit I can tape/stuff in one. KAC spare bolt parts kit is pretty much required gear if you own one.

Reaction rod is great, but I got along without one for years. Don't know why it took so long to come up with the idea really.
 
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Don’t forget a Geissele reaction rod. You will def need it if removing/installing barrels.

Id buy both (one for AR15 and the other for AR10).

If you own a KAC rifle, get the Knights Barrel Extension action wrench.
I have Colt M4's for 5.56 and a FN Scar 17s for my 308. I started a thread to get ideas for a spare parts kit for that too. Thanks for the suggestions
 
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If your looking for tools check out Real Avid I have some of their tools and they work slick.

Spare parts are basically every pin and spring.

I only carry a spare firing pin.


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This is a partial list of what I have at my bench for wrenching on AR's (and other guns too)

AR-15 Tools List

Magpul BEV Block
Magpul Armorer’s Wrench
Bolt Carrier Body
ProMag AR-15 Action Block Set
DMPS Armorer’s Wrench
Long flat head screw driver
Brownell’s #1 and #2 roll pin punch
Lyman Punch Set w/ hammer
Automatic Centering punch
Wheeler AR-15 Roll Pin Installation Tool
T-Handle Hex Key Set
Butane Torch
Loctite 271
Dead Blow Hammer
1” Wood Dowel Rod sanded down to inner diameter of upper receiver (Barrel pusher)
1” Wood Dowel Rod, approximately 12” length (Gas block pusher)
Small vise grips and section of rubber strap (Gas tube puller)
Torque wrench
Barrel nut adapters
 
This is a partial list of what I have at my bench for wrenching on AR's (and other guns too)

AR-15 Tools List

Magpul BEV Block
Magpul Armorer’s Wrench
Bolt Carrier Body
ProMag AR-15 Action Block Set
DMPS Armorer’s Wrench
Long flat head screw driver
Brownell’s #1 and #2 roll pin punch
Lyman Punch Set w/ hammer
Automatic Centering punch
Wheeler AR-15 Roll Pin Installation Tool
T-Handle Hex Key Set
Butane Torch
Loctite 271
Dead Blow Hammer
1” Wood Dowel Rod sanded down to inner diameter of upper receiver (Barrel pusher)
1” Wood Dowel Rod, approximately 12” length (Gas block pusher)
Small vise grips and section of rubber strap (Gas tube puller)
Torque wrench
Barrel nut adapters
Thanks for taking the time to put that list together
 
This is a partial list of what I have at my bench for wrenching on AR's (and other guns too)

AR-15 Tools List

Magpul BEV Block
Magpul Armorer’s Wrench
Bolt Carrier Body
ProMag AR-15 Action Block Set
DMPS Armorer’s Wrench
Long flat head screw driver
Brownell’s #1 and #2 roll pin punch
Lyman Punch Set w/ hammer
Automatic Centering punch
Wheeler AR-15 Roll Pin Installation Tool
T-Handle Hex Key Set
Butane Torch
Loctite 271
Dead Blow Hammer
1” Wood Dowel Rod sanded down to inner diameter of upper receiver (Barrel pusher)
1” Wood Dowel Rod, approximately 12” length (Gas block pusher)
Small vise grips and section of rubber strap (Gas tube puller)
Torque wrench
Barrel nut adapters
I have a lot of the same supplies on my bench...right now Im especially trying to complete a kit that I can keep ready to grab in SHTF scenario along my main M4 rifle. Im kinda getting into prepping. :)
 
How compact and light do you want this kit to be and exactly what do you want to be able to do in this SHTF scenario? The tools it takes to assemble and disassemble an AR don't take up a lot of room in say a vehicle but for something that you may want to carry in a pack, well some compromises have to be made. It's surprising what you can do with a couple of punches, some allen wrenches, a Leatherman, and some improvisation.
 
Here's a few thoughts from my bench.

If you are going to purchase a reaction rod I would recommend the Mid West Industries over the Geissele only in that it has an
integrated support for the upper portion of the the receiver; surprised Geissele over looked that fine point.

Just like with 1911's, an AR hammer block is easy to fabricate if you are doing any open trigger work to prevent the hammer from
slamming into the magazine well wall.

The Spike's tactical castle nut is a handy piece for some situations where the standard wrench just won't be able to get on the nut easily;
nice tool steel for torquing as well.

Some proper gas block 5/64" roll pin holder to start the pin and the proper size roll pin punch to seat it.

I fabricated a tool to depress the buffer detent when removing / installing the spring loaded buffer that keeps the spring from
shredding the skin off my knuckles when it slips by.

Some fabricated lonnnng roll pin holders and starters for the bolt catch roll pin; Brownell's has a half ass punch, but it is too short and you
find yourself still trying to tap the end of the punch right next to the magazine well which invites a scratch on a new gun, despite taping it
off properly.

I have found most of the clam shell style and other polymer receiver inserts become paperweights in short order. It's pretty easy to
fabricate a well-fitted upper / lower insert that will fit in your bench top vise better in a supportive manner.

These wouldn't be in my ditch bag for your SHTF scenario.

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How compact and light do you want this kit to be and exactly what do you want to be able to do in this SHTF scenario? The tools it takes to assemble and disassemble an AR don't take up a lot of room in say a vehicle but for something that you may want to carry in a pack, well some compromises have to be made. It's surprising what you can do with a couple of punches, some allen wrenches, a Leatherman, and some improvisation.
Mainly thinking of things like spare trigger assembly, Spare bolt (or the key parts of abolt that may fail to save weight in a pack). Basic pins. Probably wouldnt need to carry barrel wrenches and heavier things like that I wouldnt think but thats why Im asking. I suppose if a gas tube had issues??? Just looking to hear what everyone has to say. Thanks
 
Here's a few thoughts from my bench.

If you are going to purchase a reaction rod I would recommend the Mid West Industries over the Geissele only in that it has an
integrated support for the upper portion of the the receiver; surprised Geissele over looked that fine point.

Just like with 1911's, an AR hammer block is easy to fabricate if you are doing any open trigger work to prevent the hammer from
slamming into the magazine well wall.

The Spike's tactical castle nut is a handy piece for some situations where the standard wrench just won't be able to get on the nut easily;
nice tool steel for torquing as well.

Some proper gas block 5/64" roll pin holder to start the pin and the proper size roll pin punch to seat it.

I fabricated a tool to depress the buffer detent when removing / installing the spring loaded buffer that keeps the spring from
shredding the skin off my knuckles when it slips by.

Some fabricated lonnnng roll pin holders and starters for the bolt catch roll pin; Brownell's has a half ass punch, but it is too short and you
find yourself still trying to tap the end of the punch right next to the magazine well which invites a scratch on a new gun, despite taping it
off properly.

I have found most of the clam shell style and other polymer receiver inserts become paperweights in short order. It's pretty easy to
fabricate a well-fitted upper / lower insert that will fit in your bench top vise better in a supportive manner.

These wouldn't be in my ditch bag for your SHTF scenario.

View attachment 7237628View attachment 7237629View attachment 7237630View attachment 7237631View attachment 7237632View attachment 7237643
I havnt had time to come on here lately and now its late but just noticed you put this on here....thanks for the time. Ill check it out more tomorrow
 
I have begun putting together tools and vital replacement parts for the AR-15 platform. I am just looking for a variety of input so Im not missing something important I havnt purchased already. Thanks
As many have already pointed out great ideas, outside the house in my range bag, I have a spare complete bolt carrier group, a few allen wrenches, a few small screwdrivers, a small hammer and that is it. What do I do outside the house? Replace a bolt buffer group if I have a breakage somewhere there, adjust my scope zero, and maybe adjust my gas block and that's it. The other stuff is at my bench. Check out Brownells for some spares kits and other smithing not pricey tools. Geissele rod is nice and pricey, Brownells is lower priced. Brownell's even has a great lower priced geissele trigger.
 
As many have already pointed out great ideas, outside the house in my range bag, I have a spare complete bolt carrier group, a few allen wrenches, a few small screwdrivers, a small hammer and that is it. What do I do outside the house? Replace a bolt buffer group if I have a breakage somewhere there, adjust my scope zero, and maybe adjust my gas block and that's it. The other stuff is at my bench. Check out Brownells for some spares kits and other smithing not pricey tools. Geissele rod is nice and pricey, Brownells is lower priced. Brownell's even has a great lower priced geissele trigger.
aA friend of mine just let me use his Geissele rod. Pricey yes but definitely very high quality
 
Circling back around to this topic, I have two different sets of kit so to speak. I have the set I keep at my bench for building and repairing my AR's and I have a field kit. The bench kit is comprised mostly of what I mentioned up above and the field kit is really just some basic bolt parts. I carry a spare set of gas rings, a firing pin retaining pin, extractor, extractor o-ring, extractor spring, extractor insert, firing pin, and a cam pin. I think I may also have an ejector and ejector spring in there as well. In addition to that I carry some spare screws including a couple of 8-40 screws for scope mounts and set screws for the gas block.
 
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This box contains multiples of every spring in an ar lower. I also threw a few of the various detents in.
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this is probably the most important stuff. Spare bolts, bolt cam pins, extractors, firing pins, firing pin retainers, gas rings, and extractor springs. I Also have a couple carriers stashed away, and a few extra recoil springs. I use tubb flat wire springs. Not only do they work better than regular round springs, but the same spring will work in both carbine and rifle length buffer systems, simplifying logistics.