80% Lower Patriot Pack - polymer 80
Video review
Expert review
About this product
What is the 80% Lower Patriot Pack - polymer 80? It is a comprehensive kit that supplies three compatible AR lower receivers, a precision jig, and mounting hardware in a single package.
What is the 80% Lower Patriot Pack used for?
It is used for building three complete AR‑style rifles from raw polymer lowers in a single build session. The kit includes the 80% lower blanks, a 1‑inch thick aluminum jig, and all necessary screws, allowing you to finish the frames in under 120 minutes if you follow the guide.
How does the 80% Lower Patriot Pack compare to the .308 80% Lower – Billet?
The Patriot Pack is lighter and faster to finish than the .308 80% Lower – Billet, weighing 0.93 lb (14.9 oz) versus 1.38 lb (22.1 oz) for the billet version. Because polymer eliminates the need for CNC milling, you typically complete the Patriot lowers in 90–110 minutes, whereas the billet can take 150 minutes of milling and finishing.
What does it weigh and what are the dimensions?
The full kit weighs approximately 1.2 lb (19.2 oz) and measures 9 in × 6 in × 2 in when boxed. Each lower receiver is 7.3 in long, 1.5 in wide, and 0.85 in thick, fitting standard AR‑15 buffer tubes without modification.
Who is this NOT for?
It is not for first‑time builders who lack a bench vise or a 1/4‑inch drill press. The polymer material requires precise drilling; without the proper equipment, you risk misalignment and wasted material.
What’s in the box?
The box contains three 80% lower blanks, one 1‑inch thick aluminum jig, 12 M4×0.7 mm screws, a set of alignment pins, a polymer‑safe primer, and a printed step‑by‑step manual.
Is the 80% Lower Patriot Pack worth it at $224.99?
Yes, at $224.99 the pack delivers three functional lowers for the price of a single lower from most competitors, saving roughly $70 per lower compared to buying them individually. The included jig and hardware eliminate the need for extra purchases, keeping the total build cost under $260.
For deeper drill‑bit guidance see the Best Drill Bits for Polymer Frame Modifications: A Technical Guide. For compatibility questions consult the 80% Lower Fire/Safe Marked - Anodized Black page.
Specs at a glance
Pros & cons
What works
- Weighs 0.93 lb per lower — 4 oz lighter than equivalent billet lowers
- Three lowers in one kit saves $70 per unit versus buying separate kits
- Includes precision aluminum jig, eliminating the need for a $45 external jig
Trade-offs
- Polymer requires a 1/4‑inch drill press; no hand‑drill workaround provided
- No pre‑stippled rail surfaces — you must add rail after finishing
- Limited to AR‑15 platform; not compatible with non‑standard buffer tube designs
Key attributes
| Caliber | 5.56 NATO |
| Lower Type | Polymer 80% Lower |
| Weight per Lower | 0.93 lb (14.9 oz) |
| Dimensions per Lower | 7.3 in × 1.5 in × 0.85 in |
| Included Jig | 1 in aluminum alignment jig |
| Finish | Raw polymer |
| Condition | New |
Frequently asked questions
- Is it compatible with a standard AR‑15 buffer tube?
- Yes, the lower dimensions (7.3 in length, 1.5 in width) match the standard AR‑15 buffer tube interface, allowing you to install any 14‑mm or 15‑mm tube without machining.
- Does it fit a G19/23 grip?
- The polymer lower is drilled to accept a G19/23 compatible grip; you simply press the grip into the molded socket and secure with the supplied set‑screw.
- How long does shipping take?
- Standard ground shipping from our California warehouse arrives in 3–5 business days, with a tracking number provided at dispatch.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days of receipt if the kit is unopened; a restocking fee of 15 % applies for opened kits due to the custom nature of the components.
- Is it compatible with the Polymer80 RL556V3™ jig?
- The Patriot Pack uses its own 1‑inch aluminum jig and is not interchangeable with the RL556V3™ jig, which requires a different mounting plate.