The Elite Builder Patriot 80% Lower Jig – AR9/AR10/AR15
Price range: $229.99 through $339.99
Description
Now compatible with AR-10/LR-308, AR-15 and AR-9!
With its steel plates and precision machining, the Elite Builder has been a favorite among AR-15 and AR9 80% builders. Now, we’ve included new plates to fit AR-10, LR-308 and .308 80% lowers! The EB Jig can now complete virtually any receiver for the AR’s numerous calibers.
You can also now choose to include the enhanced drill plate to further make it easier for you to drill and hollow out your fire control group pocket.
PLEASE NOTE: Tooling and Enhanced Drill Plate are optional. You’ll need to select whether you would like accompanying tooling and plate with your jig.
Optional Rugged HSS Bits
The EB Jig can be paired with quality high-speed steel drill and end mill bits if you choose. These tough HSS bits can chew through multiple receivers for all your builds. All you need to complete your lower is a basic drill press and about two hours’ time. The tool kit includes:
- (1) 3/8 Drill Bit – 5”
- (1) 5/32 Drill Bit – 3”
- (1) 3/8 Short End Mill – 3”
- (1) 5/16 Short End Mill – 4”
- (1) 3/8 Long End Mill – 4”
Jig Features & Specs:
- Self-aligning jig requires no special fitting during setup
- Now compatible with AR-10/LR-308, AR-15 and AR-9
- Black anodized finish protects against rust and corrosion
- Pre-drilled holes for hammer, trigger, and safety pin holes
- Reinforced steel template plates for completing multiple lowers
*Important – This jig was designed with a drill press in mind for completing your 80% lower and is not designed to be used with a router/laminate trimmer.
Specs
| Weight | 8.13 lbs |
|---|---|
| Dimensions | 12 × 6 × 6 in |
| Caliber | .223 Wylde, .300 AAC Blackout, .308 Winchester, 5.56, 6.5 Creedmoor, 9mm |
| Platform | AR10, AR15, AR9 |
| Include Tooling? | YES, NO |
| Include Enhanced Drill Plate? | YES, NO |











Javon Tinsley (verified owner) –
I’ve completed at least three lowers to date over the past year with just the one jig I purchased. The machining tolerance and quality of materials has really stood up to my user errors and sometimes cheap machining equipment I used. I definitely recommend and will buy more when they’re in stock
Me (verified owner) –
Show both sides of the side plates on website photos please. My lower does not have recess pockets in the side of the mag receiver. It was either shave lower at pocket area or flat mill the bump off your jig plate. This was not crippling but could have been avoided as both pieces are made both ways(with and without recess)
John E O. (verified owner) –
Elite builders jig works awesome. If you know anything about tools etc You don’t need instructions. Works gr8 on drill press with two way cross slide drill press vise. Make sure cutter edge is not touching jig. Just the smooth shaft . Take minimal depth cut each pass. Plates are numbered for the drilling process. Only need to know two total depths 1 3/8”. Selector area. 2” deep trigger area. Go slow. Take your time. I have a Bosch laminate trimmer with the offset base ( used for counter tops etc ). Bought some 1/4” end mills. Worked just fine. Can reach the selector area where a regular trim router base can not. AAAAAAAA++++++++++++.
Blake Taylor (verified owner) –
This has been great. Set and send. User Friendly. Just wish i was a better machinist.
Roy Mass (verified owner) –
Easy to set up and use, plates have depth written right in them which is nice. Originally wrong one was sent, called customer service left message 10 min later they called back and in about 5 minutes we had things straightened out.
Mark Fowler (verified owner) –
No one will advise me with lowers to use with this jig so it’s useless to me.
Jimmy Willis (verified owner) –
I had to do some relief cuts and the side blocks to get it to fit my ambidextrous lower 80%, no big deal just letting you know it didn’t work straight out of the box
Lacy G (verified owner) –
I purchased the Elite Builder Patriot 80% Lower jig package. I can figure out how to use it but, it would better if it came with some form of INSTRUCTIONS.The jig kit itself IS very well built.
Michael Parris (verified owner) –
Nice quality, I’m having trouble finding a router to cut it out
Dale Volkmer (verified owner) –
Very satisfying very easy to use I wish it would also be for the 45 acp lower