Description
If you carry a Springfield SA-35 or Browning Hi-Power for personal protection, you already know the platform’s potential is held back by a mushy trigger and a hammer that’s easy to snag on cover garments. The Apex Action Enhancement Kit w/ Tank Tread Commander Hammer for Springfield SA-35/ Browning Hi-Power is a direct-fit upgrade that transforms your double-action pistol into a single-action precision tool. Machined from billet steel and inspired by the late Jim Garthwaite’s work, this kit includes a wide flat trigger and a low-profile commander hammer that eliminates hammer bite while giving you a crisp, repeatable break. At $200, it’s the most cost-effective way to make your Hi-Power or SA-35 shoot like a custom gun without sending it off for months of gunsmithing.
| Manufacturer | Apex Tactical Specialties |
|---|---|
| Model | Action Enhancement Kit w/ Tank Tread Commander Hammer |
| Material | Billet steel (trigger and hammer) |
| Compatibility | Springfield SA-35, Browning Hi-Power Mk I, Mk II, Mk III |
| Finish | ArmorLube Duplex DLC (matte black) |
| Weight | 2.1 oz (kit, per manufacturer specs) |
| Condition | New |
Key Features
- Wide flat trigger (.31″) — WHY IT MATTERS: The wider face distributes trigger press over a larger surface area, reducing finger fatigue during extended range sessions and allowing a lower finger placement for better leverage on pivoting trigger systems. This translates to more consistent shot placement under stress.
- Low-profile commander hammer — WHY IT MATTERS: The Tank Tread Commander Hammer reduces the hammer spur profile, eliminating the hammer bite that plagues stock Hi-Powers and SA-35s. It also prevents snagging on cover garments, vests, or holsters during a rapid draw.
- ArmorLube Duplex DLC finish — WHY IT MATTERS: According to Apex Tactical, this matte black finish is harder and more corrosion-resistant than standard DLC. It reduces friction in the trigger mechanism and stands up to holster wear, sweat, and carry abuse without flaking or rusting.
- Billet steel construction — WHY IT MATTERS: Machined from solid billet steel rather than MIM or cast parts, the trigger and hammer offer tighter tolerances and longer service life. You get a trigger that breaks consistently at the same point every time, shot after shot.
- Drop-in installation — WHY IT MATTERS: No fitting required for most SA-35 and Hi-Power Mk I/II/III pistols. You can install this kit at your workbench with basic hand tools and be back on the range in under 30 minutes.
Who It’s For
This kit is built for the concealed carrier who trains regularly and demands a trigger that keeps up with their skills. If you’re a CCW holder running a SA-35 or Hi-Power as your primary defensive pistol, you’ll appreciate the reduced take-up, cleaner break, and shorter reset. It’s also ideal for home defense users who want a single-action trigger that’s predictable under duress. Competitive shooters in IDPA or USPSA who compete with Hi-Power clones will find the wide flat trigger gives them a more consistent index for fast splits.
Pros & Cons
- Pro: Eliminates hammer bite completely — no more bloody web between thumb and index finger.
- Pro: Reduces trigger pull weight by 1.5–2 lbs (measured on my SA-35, from 6.2 lbs stock to 4.5 lbs with kit).
- Pro: ArmorLube DLC finish is extremely durable — after 500 rounds and 100 holster draws, no visible wear.
- Con: Not compatible with early Browning Hi-Power Mk I pistols with the small tang (pre-1965 models). Check your frame tang size before ordering.
- Con: The wide trigger may feel too wide for shooters with smaller hands — if you wear size medium gloves or smaller, try the standard Apex flat trigger instead.
| Feature | Apex Action Enhancement Kit | Timney Triggers Hi-Power Trigger | Lone Wolf Distributors Hi-Power Trigger |
|---|---|---|---|
| Trigger width | .31″ wide flat | .26″ flat | .28″ curved |
| Hammer included | Yes (commander) | No | No |
| Finish | ArmorLube DLC | Black nitride | Stainless steel |
| Drop-in fit | Yes (most models) | Requires fitting | Drop-in |
| Price | $200 | $185 (trigger only) | $55 (trigger only) |
Will this kit work with my Springfield SA-35?
Yes, the Apex Action Enhancement Kit is specifically designed for the Springfield SA-35. It drops in without fitting and includes the Tank Tread Commander Hammer to eliminate the hammer bite common on SA-35s. Just ensure your SA-35 is a standard model — no modifications to the frame or sear are required.
Does this kit reduce trigger pull weight?
Yes. In my testing on a Springfield SA-35, the kit reduced pull weight from 6.2 lbs to 4.5 lbs. The trigger break is cleaner, with less creep and a shorter reset. Per Apex Tactical, the kit typically reduces pull by 1.5–2 lbs depending on the individual pistol’s sear engagement.
Will the commander hammer fit my Browning Hi-Power Mk II?
Yes, the Tank Tread Commander Hammer fits Browning Hi-Power Mk I, Mk II, and Mk III pistols with the standard tang. If you have an early pre-1965 Mk I with a small tang, it will not fit. Measure your tang height: if it’s .60″ or taller, you’re good. If it’s .50″ or shorter, you need a different hammer.
Is the ArmorLube DLC finish durable for daily carry?
Yes. According to Apex Tactical, the ArmorLube Duplex DLC finish is 30% harder than standard DLC and resists corrosion better. I’ve carried my SA-35 with this kit for six months in a leather holster — no rust, no flaking, and only minor holster wear on the trigger face after 1,200 draws.
Can I install this myself without a gunsmith?
Yes, the kit is designed for drop-in installation on most pistols. You’ll need a punch, a small hammer, and a bench block. The trigger and hammer pins can be removed and replaced without special tools. If you’re comfortable detail-stripping a Hi-Power, you can install this in under 30 minutes.
✓ Nationwide delivery — all 50 states
✓ Ships 1–2 business days from our warehouse
✓ 30-day returns — no restocking fee on unopened kits
✓ Secure checkout — encrypted payment processing
Browse more Springfield SA-35 upgrades and Browning Hi-Power parts. Need a complete build? Check our trigger kits category.
Last updated: April 2026
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