DIY Gun Mods: Top Bushmaster AR15 Modifications

Learn how to modify your AR-15's buttstock, pistol grip, handguard and trigger.
Parts:
- Bushmaster QRC AR-15 in 5.56 NATO with a 16” barrel and factory collapsible stock: www.midwestgunworks.com/page/...
- Midwest Industries Gen 3 M-Series M-LOK Handguard: www.midwestgunworks.com/page/...
- Magpul Buttstock: www.midwestgunworks.com/page/...
- Magpul Pistol Grip: www.midwestgunworks.com/page/...
-Rise Armament Super Sport Drop-In Trigger: www.midwestgunworks.com/page/...
Tools Needed:
-1/2" socket wrench with 3” extension
-Magpul armorer’s wrench: www.midwestgunworks.com/page/...
-gunsmithing hammer with nylon and brass faces: www.midwestgunworks.com/page/...
-Real Avid accu-punch hammer and punches: www.midwestgunworks.com/page/...
-Standard hex keys: www.midwestgunworks.com/page/...
- FAT wrench: www.midwestgunworks.com/page/...
- vice block set:
www.midwestgunworks.com/page/...
- included with trigger kit: additional allen wrenches
- included with handguard: barrel nut tool.
Jump to:
1:07: tools - • DIY Gun Mods: Top Bush...
2:08: lower disassembly - • DIY Gun Mods: Top Bush...
2:53: buttstock installation - • DIY Gun Mods: Top Bush...
4:19: pistol grip installation - • DIY Gun Mods: Top Bush...
5:25: trigger - • DIY Gun Mods: Top Bush...
10:02: upper disassembly - • DIY Gun Mods: Top Bush...
13:10: handguard installation - • DIY Gun Mods: Top Bush...
14:26: gas block disassembly - • DIY Gun Mods: Top Bush...
16:17: handguard and gas block installation - • DIY Gun Mods: Top Bush...
18:05: re-assembly - • DIY Gun Mods: Top Bush...
All information provided is merely for entertainment and informational purposes. Should you decide to act upon any information provided, you do so at your own risk. Midwest Gun Works does not accept any liability for any mistakes, errors, or faults that may occur. Refer to the manufacturer for specifications of the products used. It is recommended that all modifications or repairs be done by a qualified Gunsmith.

[@MultiJennifer54]

WHAT A GREAT DETAILED VIDEO, LIGHTING A BIT DIM, BUT GOOD ENOUGH TO SEE, YOUR ONE HECK OF A GUNSMITH , A TRUE GUNSMITH

[@kennyjeffers9968]

This video just answered so many questions I had thank you

[@mfranklin601]

What is the size of the gas block used in this video

[@stand4truth44]

That's good instruction!!

[@seancombs5062]

So with that in mind… GREAT VIDEO, WONDERFUL, VERY INFORMATIVE! Do you possibly have intentions of updating the video? Hmm? Maybe just the parts list? Please, pretty please?

[@geneciccone4196]

Is it a mil spec or a commercial buffer tube on that bushmaster model?

[@seancombs5062]

Any way to get an updated parts list? Just inherited one of these rifles and could use some assistance in updating it like in the video but with a parts list that hasn’t discounted all the parts that are being recommended

[@nolanwhite9515]

What size is the low profile gas block?

[@slipjointguy]

Aren’t you supposed to torque the barrel, and aren’t you supposed to replace the lock washer on the flash hider?

[@midwestgunworks]

Yes you are. As we talked about in the video, it is recommended to torque to manufacture specifications. As for the lock washer, it is not required to replace if it is in good condition.

[@grneyepima]

What size gas block for this bushmaster? 750?

[@seancombs5062]

Or .625 like for the pencil barrel

[@HammaerMan]

What gas block did you replace the old one with

[@midwestgunworks]

We used a Midwest Industries lo pro I believe.

[@uGotSN1p3dB1cH]

@@midwestgunworks so the gas block being low profile is still to tall for the hand guard ??

[@seancombs5062]

In regards to the previous comment (I made) I know the video is old, very old, and almost all of the product links send you to products that are discontinued, I’m still going to comment, they might answer, who knows?!

[@backbonz]

Man this video is dim..