Polymer80 PF940v2 80% Full Size Pistol Frame Kit — Glock 17/22/24/31/34/35 Gen 3 Compatible

Description

The Polymer80 PF940v2: America’s Most Popular 80% Pistol Frame Kit

If you’ve been building Glock-compatible pistols from scratch, you know the name. The Polymer80 PF940v2 80% Full Size Pistol Frame Kit is the platform that defined the 80% pistol builder’s movement. Compatible with Glock 17, 22, 24, 31, 34, and 35 Gen 3 components, the PF940v2 is where most serious builders start — and often end up returning to for their best builds.

Americans Gun carries the complete Polymer80 ecosystem. The PF940v2 completes a three-platform lineup alongside our PF940CL long-slide compact and PF45 large frame. For those who want standalone blanks without jigs, see our Pistol Blanks section. Our Frames and Jigs category has the full selection.

Second Generation Excellence

The v2 designation marks meaningful improvements over the original PF940. Polymer80’s engineering team refined the grip texture, repositioned the rail section geometry, and improved the internal channel dimensions for more consistent parts fit. The result is a frame that not only looks better than the original but functions more predictably during assembly and demonstrates tighter tolerances when paired with quality aftermarket components.

Three specific improvements stand out in the PF940v2:

• Refined texture pattern: More contact points, better traction in wet conditions, comfortable for extended range sessions
• Improved trigger guard undercut: Allows proper thumb-over-bore or high-grip technique without hot spots
• Refined locking block recess: Tighter dimensional tolerances reduce play in the completed build

What’s Included

• PF940v2 80% frame blank — Black, FDE, OD Green, Gray, or Cobalt
• Billet 6061 aluminum top jig plate
• Billet 6061 aluminum bottom jig plate
• Drill bits — all required sizes for trigger pin holes
• End mill bit — fire control cavity and rear rail clearance
• Complete hardware and fastener set
• Illustrated step-by-step instruction guide

Detailed Specifications

Component Compatibility Map

The PF940v2’s versatility comes from its broad Gen 3 compatibility. Here’s what works with which caliber:

9mm Luger builds: G17 or G34 slide (4.49″ or 5.31″), G17/G34 barrel, G17/G34 lower parts kit, G17 magazines

.40 S&W builds: G22 or G35 slide (4.49″ or 5.31″), G22/G35 barrel, G22 lower parts kit, G22 magazines

.357 SIG builds: G31 slide, G31 barrel, G31 lower parts kit, G31 or G22 magazines (same footprint)

Sourcing your components is easy with the massive aftermarket. Our Polymer80 PF-Series Rear Rail Module is the essential frame component to order with your kit. The Polymer80 PF940 Frame Pin Kit and the PF940V2 Jig Kit (for those who already have a blank) are also available.

Community and Resources

The PF940v2 benefits from an enormous builder community. YouTube is packed with build walkthroughs, Reddit’s r/polymer80 subreddit is active, and dedicated builder forums provide troubleshooting for every possible situation. When you build a PF940v2, you’re not alone — millions of builders have completed this exact frame and documented the process thoroughly. New builders should take advantage of these resources before starting their first build.

Pros and Cons

Pros:

• Most popular 80% pistol frame in the world — largest builder community
• Multi-caliber compatibility — 9mm, .40 S&W, .357 SIG from one frame
• Ergonomic improvements over OEM Glock full-size frames
• Complete jig kit with all required tooling included
• USA manufactured — reinforced polymer composite
• Enormous aftermarket for slides, barrels, triggers, and accessories

Cons:

• Machining required — not a ready-to-install component
• Full-size pistol — larger than carry compact frames
• Rear rail module and parts kit must be purchased separately
• State restrictions vary — check your jurisdiction before ordering

Legal Compliance Notice

The Polymer80 PF940v2 is an unfinished 80% pistol frame that does not meet the definition of a firearm under federal law. It may be shipped directly to consumers without FFL involvement at the federal level. Numerous state and local jurisdictions have enacted laws that restrict, regulate, or prohibit the purchase and completion of 80% frames. Americans Gun strongly advises all customers to research and verify applicable laws in their state before ordering. The firearms regulatory landscape continues to evolve, and buyer responsibility for legal compliance is absolute.

Frequently Asked Questions

Q: Is a milling machine required, or will a drill press work?

A: A drill press is sufficient for the PF940v2 build. The billet aluminum jig provides positive-stop drill guides that control bit depth and angle throughout the process. The end mill operations can also be performed with a drill press at low speed using the included end mill bits. A milling machine produces the most precise results, but thousands of builders have completed perfect PF940v2 frames with only a drill press and the included tooling.

Q: Can I use the same jig for a PF940Cv1 build?

A: No. The PF940v2 and PF940Cv1 use different jig systems because the frames have different geometries. The full-size jig fits only the full-size frame, and the compact jig fits only the compact frame. Jig kits are sold specifically for each model.

Q: Does the PF940v2 have a rail for a weapon light?

A: Yes. The PF940v2 features an integrated Picatinny accessory rail on the dust cover, compatible with standard 1913 Picatinny rail accessories including weapon lights (Streamlight TLR-1, SureFire X300), lasers (Crimson Trace CMR), and combination light/laser units. The rail section is integral to the frame — not an add-on — for maximum strength.

Q: What is the best slide option for a first PF940v2 build?

A: For first-time builders, a value-priced but quality bare slide or complete slide assembly in G17 format is ideal. Brownells G17 compatible slides, Lone Wolf slides, and Polymer80’s own PFS9 slide are all reliable starting points. For builders who want a premium result, Agency Arms, Zev Technologies, and similar high-end makers offer G17 slides with RMR cuts, front serrations, and factory optic mounts — at proportionally higher prices.

Q: Can I build the PF940v2 as a competition pistol for USPSA or IDPA?

A: Yes, with the right component selection. For USPSA Production division, a G17-length slide with a quality match barrel, a trigger in the legal range (no lighter than 2.5 lbs per USPSA rules), and iron sights are the standard configuration. For USPSA Limited or IDPA SSP, a G35-length slide in .40 S&W (or converted to 9mm with a conversion barrel) can also qualify. Verify division rules with your local club’s equipment verifier before competing.

nn