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GM WARFARE BILLET BARREL
GORILLA MACHINING AR-15 .300 AAC Black Out Billet Barrel
Gorilla Machining AR-15 5" Micro .300 Black Out Barrel Micro Gas System 1:7 5R Kit
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Gorilla Machining AR-15 5" Micro .300 Black Out Barrel Micro Gas System 1:7 5R Kit
5/5 rating
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$94.99
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Retail Price:
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AR-15 5" Micro .300 Black Out Barrel Micro Gas System 1:7 5R Kit
Part Number:
GM-MBN300BLKOUT-CVS-5"-1
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Manufacturer:
Gorilla Machining
Chamber: .300 Black Out
Contour: M4
Fluted: No
Length: 5"
Twist Rate: 1:7 5R
Gas System: Micro Length
Diameter at Gas Port: .750
Thread Pitch: 5/8x24
Feed Ramps: M4
Material: 4150 CMVS
Finish: QPQ
Process: Button Rifled
Lining: QPQ
Extension: M4
Assembly: Stripped
Gas Block
QPQ Black Nitride coated
.750 ID
low profile
4340 steel
light weight
1.6oz
Micro Gas Tube
Stainless steel
Micro length
Note- MLOK and Keymod Handguards are compatible with this assembly.
Mlok nuts will clear Handguard directly under gas block.
Note-
For Suppressed or Traditional muzzle devices use a 4.25? Handguard (Receiver to muzzle shoulder distance is 4.3?) or up to 5.0? Handguards if no suppressor to be used. ( Receiver to muzzle end is 4.95?)
Note-
For Linear Comps use a 5.5? to 6? Handguard. Generally we use a HG 1/2? longer than the barrel.
Note-
Usually H to H3 buffers are used. For PDW stocks we have used the JP Std and Heavy types both seem to work the same.
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5/5 rating
Best backpack gun barrel
Barrel functions flawlessly with the right ammo. You can see the quality of the fit and finish. Gas port is sized for subsonic ammo. If you choose to run supersonic ammo you will need an adjustable gas block or light supersonic loads. Factory supersonic ammo may run very hot, requiring some heavy buffer weights, if you don't have an adjustable gas block.
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Reviewed by:
BWILLIAMS
from Anchorage on 11/3/2021
5
5
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