This Did Not Go So Well! | Testing Full Lefty AR15 in 300 BLK
Published: 3 weeks ago
** the shift in settings was due to the rifle getting extremely dirty. I have to do some testing to figure out which ammo was dumping unburnt gun powder into the rifle. **
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.
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)
Railscales Karve Hand stop Black Aluminum
Osight X Green Dot Optic
Osight Picatinny riser mount
Magpul CTR Stock with Enhanced Butt Pad
Cat ODB 718 Inconel Suppressor
Breek Arms Plan B Hub Mount (Switched to Rearden Mount)
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.
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)
Railscales Karve Hand stop Black Aluminum
Osight X Green Dot Optic
Osight Picatinny riser mount
Magpul CTR Stock with Enhanced Butt Pad
Cat ODB 718 Inconel Suppressor
Breek Arms Plan B Hub Mount (Switched to Rearden Mount)