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300 BLACKOUT AAC - 5.56 CASE CUTTER JIG
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RELEASE // lbry // 27620fc355bbb2111373c54…
Released February 4, 2026, 3:54 PM Indexed March 9, 2026, 1:13 AM 8.8MiB

Harbor Freight 2" Cut-Off Saw Jig

added Version 2
*Now has 4 versions: Regular, Short , Detached for those with smaller beds, and No tray.

Features:
Fits on top of the whole saw base for a snug fit.
Cuts 5.56 or .223 brass to 35.5mm for further sizing.
Can cut shorter cases using optional 3mm machine screw.
Case saddle compensates for the taper of the case for a nice square cut.
No need to disable safety lever on saw, the jig does it for you.
Brass nib catch tray.
Saw chop depth option.

Optional M3 hole on end of saddle to override case length shorter if desired
Optional Boss Hole in front is for a M5 bolt to make adjustable chop depth if desired.

Remove bed vise clamp to use this jig.
Use caution around saw blade.
Use at own risk.
Print Settings

Rafts:
No
Supports:
Yes
Resolution:

.2
Infill:

50%
Filament brand:

Hatchbox
Filament color:

Red
Filament material:

PLA
Notes:

Fill range 25-100%
Support from bed/glass only
(Support roofing floor not recommended)

LBRY Tags: guncad; ar; 300blk; jig; 556

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