polymer 80 glock 19 - polymer 80
Pros & cons
What works
- Weighs 14.5 oz – 2 oz lighter than comparable polymer lowers
- Dimensions match Glock 19 slide for plug‑and‑play assembly
- Fit‑check jig reduces machining time by up to 30 minutes
Trade-offs
- No pre‑installed stippling – requires additional finishing step ($40‑$80)
- Requires CNC or drill‑press; not suitable for tool‑less builds
- No included slide or barrel – total build cost exceeds $1,000
Video review
Expert review
Specs at a glance
About this product
What is the Polymer 80 Glock 19 lower? It is an 80% polymer lower receiver kit designed to let shooters build a Glock‑style 9mm pistol with minimal machining.
The kit includes a CNC‑milled lower, fit‑check jig, and all necessary hardware to complete a Glock 19‑compatible frame. At $700 it targets DIY builders who value precision tolerances and a lightweight polymer construction.
What is the polymer 80 glock 19 used for?
The lower is used to create a functional Glock‑style 9mm pistol for competition or personal use.
It supplies the foundation for the trigger, slide, and barrel assembly, allowing a fully operational firearm after completing the build steps.
How does the polymer 80 glock 19 compare to the Polymer80 PF940V2?
The Glock 19 lower is 14.5 oz, about 2 oz lighter than the PF940V2’s 16.5 oz polymer frame.
Its dimensions match Glock’s 19‑size slide more closely, reducing fit issues, while the PF940V2 is geared toward full‑size pistols and can feel bulkier in a compact grip.
What does it weigh and what are the dimensions?
The unit weighs 14.5 oz (411 g) and measures 5.5 in (140 mm) in length, 1.26 in (32 mm) in height, and 1.26 in (32 mm) in width.
These specs keep the overall pistol under 1.5 lb, well within the range of a standard Glock 19.
Who is this NOT for?
This kit is not for first‑time builders with no machining tools.
It requires a drill press or CNC mill, a set of jigs, and basic metal‑working skills; novice shooters may struggle without proper guidance.
What's in the box?
The package contains one polymer lower, a stainless‑steel fit‑check jig, eight M2.5 screws, two polymer pins, and a printed assembly guide.
All components are pre‑drilled to tolerances within ±0.02 mm, minimizing extra filing.
Is the polymer 80 glock 19 worth it at $700?
At $700 the kit offers a high‑precision frame that outperforms many cheaper polymer lowers.
When compared to a complete Glock 19 factory pistol at $550, you save $150 on the lower but must add costs for a slide, barrel, and finish, bringing total build cost to roughly $1,200.
For builders who value customizability and a lighter frame, the price is justified.
See also our .308 80% Lower – Billet or read the Complete FAQ on the 80% Lower Registration Process for more guidance.
Key attributes
| Caliber | 9x19mm |
| Capacity | 15+1 rounds |
| Frame Size | Glock 19 |
| Weight | 14.5 oz (411 g) |
| Color | Black (raw) |
| Condition | New |
Frequently asked questions
- Is it compatible with Glock 19 slides?
- Yes, the lower is machined to Glock 19 dimensions and accepts standard Glock 19 slides without modification. The slide‑to‑frame clearance is 0.029 in, matching factory tolerances.
- Does it fit Glock 17 magazines?
- No, the lower is sized for Glock 19 magazines, which are 15 rounds; Glock 17 magazines are longer and will not seat correctly. Use only 15‑round Glock 19 magazines.
- How long does shipping take?
- Standard US shipping takes 3–5 business days after payment clearance. Expedited options are available for an additional $25.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days if the lower is unused and in original packaging. A restocking fee of 15 % applies for non‑defective returns.
- Does this work with a Pistol Caliber Conversion kit?
- The lower can accept most 9mm conversion kits, provided the slide and barrel match Glock 19 dimensions. Conversion kits typically add 0.5 lb to the finished pistol.