Range Debrief - Left Handed AR15 300 BLK Build - Diagnosing Issues & Rundown of Parts
Published: 23 hours ago
This was my first full lefty AR15 build. I put the lower and upper together on this 300 BLK rifle. My goal with this project was to prove a true left handed AR15 can be built from parts. I am still working on it but have determined the barrel was the issue and also found the Riflespeed gas block to be clogged with copper fragments shaved off from the barrel issue. I have replaced the barrel and cleared out the Riflespeed. I did drill out the gas port right away from .097" to .120" which was the same as the barrel I drilled out on the other build. Ready to re-test.
To make this left handed I used:
CMT Left Handed Upper Receiver - Aero, Stag, and KAK Industry also make left handed upper receivers. I wanted anti-rotation tabs so the CMT upper was my best option. It is very well made.
CMT Ambi Lower Receiver: They make an ambi lower that matches very well with their upper.
Superlative Arms Left Handed Bolt Carrier 5.56/300blk in DLC - you can also get left handed BCG's elsewhere like KAK Industry or Superlative Arms among others.
Toolcraft Left Handed Bolt DLC - KAK makes lefty bolts as well
Other parts used (everything else can be universal, it does not matter with a left handed or right handed ar15):
Riflespeed Adjustable Gasblock
Sentry Manufacturing Deadlock Charging Handle
Kung Fu grip from Die Free Co.
Handleitgrips grip tape - black premium sandpaper
San Tan Dimpled Hexagon Forward Assist
FCD 50 Degree Q Safety Selector - Long Right Side, Short Left Side
Sharps Bros handguard 7" (recommend their updated barrel nut on their website that has a parkerized finish if the stock one with the handguard is nitride finished.
Faxon 300 blk 9" barrel 1:5 twist pistol length(switched to BA 8.3" Hanson Low Profile Pistol length gas block Barrel)
Q Rearend plan b radial brake 5/8 x 24 (switched to Breek Arms Plan B Muzzle Brake using Precision Armament Accu-Washers .825")
Railscales Karve Hand stop Black Aluminum
Osight X Green Dot Optic
Osight Picatinny riser mount
Magpul CTR Stock with Enhanced Butt Pad 0.80
Cat ODB 718 Inconel Suppressor (switched out to Ridgeback Defense Sahara 300 Ti)
Breek Arms Plan B Hub Mount (Switched to Diligent Defense Zilch)
Optics Planet : 7% OFF - Code LeftyEDC : https://alnk.to/5uhzQic
Midway USA: https://alnk.to/aWFQOmy
Die Free Co. - Code Lefty10: https://alnk.to/aWGdHn6
Osight: code LeftyEDC : https://www.osight.com/s/O4LLJK
__________________________________
Links - https://beacons.ai/leftyedc
Follow me on Instagram: https://www.instagram.com/leftyedc/
Email me at: Leftyedc88@gmail.com
Divo Knives - My Knife Company:
https://linktr.ee/divo_knives
Divo Knives - Dive Bar Facebook Group: https://www.facebook.com/share/g/15vf6GHJn9/?mibextid=wwXIfr
Channel links:
Patreon: https://www.patreon.com/LeftyEDC
Merch: https://divoknives.com/collections/swag
Affiliate Links:
Kansept Knives Code Lefty10 : https://bit.ly/3su4xBK
Axial Gear code Lefty05: http://bit.ly/3JoF5Uf
Vero Engineering: https://bit.ly/3RMQKR2
Exceed Designs: https://bit.ly/4c8cjE7
Kizer Knives: https://bit.ly/3qKJt9I
Blade HQ: https://alnk.to/fwtsgno
Giantmouse: 8% OFF with Code LeftyEDC: https://bit.ly/3J2ej2x
Remette Knives Code Leftyedc for 5% OFF: https://tidd.ly/4me9ohD
Ketuo/Rike: https://bit.ly/3YtEJ6E
TSPROF: https://bit.ly/3QuFas0
Kunwu Knives: https://bit.ly/3ZXNvqY
Traditional Pocket Knives/C. Risner Cutlery: http://bit.ly/3JyvDhn
Tacray: http://bit.ly/3GrrvRo
Cavol Knives: https://bit.ly/3pfxrDU
Artisan Cutlery: https://tidd.ly/3UDZrh3
CJRB: https: https://tidd.ly/4ol9cys
Nitecore: https://tidd.ly/44aTuho
Vosteed: https://tidd.ly/44xsRSH
Tenable Knives : https://shrsl.com/4rtqt
Soulbuilt: https://bit.ly/4bqOiHF
Civivi Knives: https://tidd.ly/3ZZkhdT
We Knives: https://tidd.ly/4lxdCQj
Avian Knives: https://avianknives.com/LEFTYEDC
Wuben Flashlights: https://bit.ly/3NZQQl8
Urban EDC: https://bit.ly/3Hr77vX
Toor Knives: Free Shipping w/code Lefty: https://alnk.to/a463UfC
20% OFF Links:
Osight: code LeftyEDC : https://www.osight.com/s/O4LLJK
Rolling Square Code Leftyedc20: http://bit.ly/3LLSFma
15% OFF Links:
Off The Grid Surplus Code LeftyEDC15: https://alnk.to/b7ABNac
10% OFF Links:
Olight code LeftyEDC: https://www.olightstore.com/s/BXNXEC
Cyelee Optics- Code Lefty10 - http://bit.ly/41Jox1R
Loop Gear Flashlights code Leftyedc: https://bit.ly/3RVgzxM
My Disassembly Tools:
La Miere Applicator Tips: https://amzn.to/3K74IMa
Wiha Stubby Driver: https://amzn.to/3AQUEQ1
Wiha T8 Torx Bits: https://amzn.to/3OG3OEA
Wiha Torx Set: https://amzn.to/3OE2GBt
Isopropyl Alcohol: https://amzn.to/3F94TBP
Vibratite 122 from Orion Knives with applicator tip: https://www.orionknives.com/store/p/hb6mownyprhz7ou6gz7te4vasdry9i
Vibratite 122- larger qty- https://amzn.to/3VAU0y5
Knipex Pliers: https://amzn.to/3iz7yfB
Tinkerforce Tray: https://tinker-force.com/collections/frontpage
Fixit Sticks ToolKit: https://amzn.to/3VYlO1k
Thank you so much for watching and following along.
-Kev
To make this left handed I used:
CMT Left Handed Upper Receiver - Aero, Stag, and KAK Industry also make left handed upper receivers. I wanted anti-rotation tabs so the CMT upper was my best option. It is very well made.
CMT Ambi Lower Receiver: They make an ambi lower that matches very well with their upper.
Superlative Arms Left Handed Bolt Carrier 5.56/300blk in DLC - you can also get left handed BCG's elsewhere like KAK Industry or Superlative Arms among others.
Toolcraft Left Handed Bolt DLC - KAK makes lefty bolts as well
Other parts used (everything else can be universal, it does not matter with a left handed or right handed ar15):
Riflespeed Adjustable Gasblock
Sentry Manufacturing Deadlock Charging Handle
Kung Fu grip from Die Free Co.
Handleitgrips grip tape - black premium sandpaper
San Tan Dimpled Hexagon Forward Assist
FCD 50 Degree Q Safety Selector - Long Right Side, Short Left Side
Sharps Bros handguard 7" (recommend their updated barrel nut on their website that has a parkerized finish if the stock one with the handguard is nitride finished.
Faxon 300 blk 9" barrel 1:5 twist pistol length(switched to BA 8.3" Hanson Low Profile Pistol length gas block Barrel)
Q Rearend plan b radial brake 5/8 x 24 (switched to Breek Arms Plan B Muzzle Brake using Precision Armament Accu-Washers .825")
Railscales Karve Hand stop Black Aluminum
Osight X Green Dot Optic
Osight Picatinny riser mount
Magpul CTR Stock with Enhanced Butt Pad 0.80
Cat ODB 718 Inconel Suppressor (switched out to Ridgeback Defense Sahara 300 Ti)
Breek Arms Plan B Hub Mount (Switched to Diligent Defense Zilch)
Optics Planet : 7% OFF - Code LeftyEDC : https://alnk.to/5uhzQic
Midway USA: https://alnk.to/aWFQOmy
Die Free Co. - Code Lefty10: https://alnk.to/aWGdHn6
Osight: code LeftyEDC : https://www.osight.com/s/O4LLJK
__________________________________
Links - https://beacons.ai/leftyedc
Follow me on Instagram: https://www.instagram.com/leftyedc/
Email me at: Leftyedc88@gmail.com
Divo Knives - My Knife Company:
https://linktr.ee/divo_knives
Divo Knives - Dive Bar Facebook Group: https://www.facebook.com/share/g/15vf6GHJn9/?mibextid=wwXIfr
Channel links:
Patreon: https://www.patreon.com/LeftyEDC
Merch: https://divoknives.com/collections/swag
Affiliate Links:
Kansept Knives Code Lefty10 : https://bit.ly/3su4xBK
Axial Gear code Lefty05: http://bit.ly/3JoF5Uf
Vero Engineering: https://bit.ly/3RMQKR2
Exceed Designs: https://bit.ly/4c8cjE7
Kizer Knives: https://bit.ly/3qKJt9I
Blade HQ: https://alnk.to/fwtsgno
Giantmouse: 8% OFF with Code LeftyEDC: https://bit.ly/3J2ej2x
Remette Knives Code Leftyedc for 5% OFF: https://tidd.ly/4me9ohD
Ketuo/Rike: https://bit.ly/3YtEJ6E
TSPROF: https://bit.ly/3QuFas0
Kunwu Knives: https://bit.ly/3ZXNvqY
Traditional Pocket Knives/C. Risner Cutlery: http://bit.ly/3JyvDhn
Tacray: http://bit.ly/3GrrvRo
Cavol Knives: https://bit.ly/3pfxrDU
Artisan Cutlery: https://tidd.ly/3UDZrh3
CJRB: https: https://tidd.ly/4ol9cys
Nitecore: https://tidd.ly/44aTuho
Vosteed: https://tidd.ly/44xsRSH
Tenable Knives : https://shrsl.com/4rtqt
Soulbuilt: https://bit.ly/4bqOiHF
Civivi Knives: https://tidd.ly/3ZZkhdT
We Knives: https://tidd.ly/4lxdCQj
Avian Knives: https://avianknives.com/LEFTYEDC
Wuben Flashlights: https://bit.ly/3NZQQl8
Urban EDC: https://bit.ly/3Hr77vX
Toor Knives: Free Shipping w/code Lefty: https://alnk.to/a463UfC
20% OFF Links:
Osight: code LeftyEDC : https://www.osight.com/s/O4LLJK
Rolling Square Code Leftyedc20: http://bit.ly/3LLSFma
15% OFF Links:
Off The Grid Surplus Code LeftyEDC15: https://alnk.to/b7ABNac
10% OFF Links:
Olight code LeftyEDC: https://www.olightstore.com/s/BXNXEC
Cyelee Optics- Code Lefty10 - http://bit.ly/41Jox1R
Loop Gear Flashlights code Leftyedc: https://bit.ly/3RVgzxM
My Disassembly Tools:
La Miere Applicator Tips: https://amzn.to/3K74IMa
Wiha Stubby Driver: https://amzn.to/3AQUEQ1
Wiha T8 Torx Bits: https://amzn.to/3OG3OEA
Wiha Torx Set: https://amzn.to/3OE2GBt
Isopropyl Alcohol: https://amzn.to/3F94TBP
Vibratite 122 from Orion Knives with applicator tip: https://www.orionknives.com/store/p/hb6mownyprhz7ou6gz7te4vasdry9i
Vibratite 122- larger qty- https://amzn.to/3VAU0y5
Knipex Pliers: https://amzn.to/3iz7yfB
Tinkerforce Tray: https://tinker-force.com/collections/frontpage
Fixit Sticks ToolKit: https://amzn.to/3VYlO1k
Thank you so much for watching and following along.
-Kev