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// Geissele Automatics · Two-Stage Trigger
Geissele G2S®
Geissele’s two-stage at its most direct: the same tool steel and wire-EDM-cut sears as the SSA®, with three things left out — and Geissele lists all three.
Geissele value tier
$175.00
- SKU TRG-GEI-G2S-CB
- Maker part no. 05-145
- Total pull 4.25–4.75 lb
- Bow Curved
Ordered through our team — tell us the rifle and we’ll confirm fit before it ships.
// Specifications
The numbers
| Specification | Value |
|---|---|
| Manufacturer | Geissele Automatics |
| Maker part number | 05-145 |
| SOT SKU | TRG-GEI-G2S-CB |
| Type | Two-stage |
| First stage | 2.75–3 lb |
| Second stage | 1.5–1.75 lb |
| Total pull | 4.25–4.75 lb |
| Adjustment | Non-adjustable |
| Bow | Curved (M4 profile) |
| Pin size | Small pin only — mil-spec 0.154 in |
| Platform | AR-15 / AR-10 |
| Fits | AR-15 and AR-10 rifles and pistols with a mil-spec small-pin (0.154 in) lower |
| Not approved for | AR-9 and other pistol-caliber AR builds; SIG MPX/MCX |
| Material | Tool steel; wire-EDM-cut sears |
| Finish | Black oxide |
| In the box | Trigger and instructions |
| Made in | USA |
| Retail price | $175.00 |
// Why it
The same sears, cut the same way.
01 Same steel, same sears as the SSA®
Geissele uses the same tool steel and wire-EDM-cut sears, and says the feel and reliability match the SSA®.
02 What was left out is listed
No laser markings, magnetic particle inspection spot-checked rather than per part, and a different hammer-pin retention method. If your program needs per-part inspection records, buy the SSA®.
03 A lighter break than the MBT-2S
1.5–1.75 lb on the second stage against the MBT-2S at 2.0 lb. If you want lighter still, the SSA-E® breaks at 0.9–1.3 lb.
04 Weights are ranges
Geissele publishes approximate ranges. A trigger that gauges at the top of its range is in specification, not defective.
// Before you order
Not approved for AR-9 or other pistol-caliber AR builds. None of our triggers — LaRue or Geissele — is approved for an AR-9 or a pistol-caliber upper. Geissele also excludes the SIG MPX/MCX, and fitting one in either voids Geissele’s warranty. Our lowers are rollmarked CAL: MULTI — if a pistol-caliber upper is on the plan, tell us before we fit a trigger.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
We don’t stone, polish or modify sear surfaces. Every trigger goes in exactly as its maker built it, keeps the maker’s warranty in full, and is function checked by us. If you want a lighter break, the answer is a different trigger — not a modified one.
Warranty: the maker’s warranty applies in full to an unmodified trigger; we warrant our own fitting and function check. See warranty information.
// The rest of the range
Other triggers we fit
LaRue Tactical® and MBT are marks of LaRue Tactical. Geissele®, G2S®, SSA®, SSA-E®, SD-E®, Super Semi-Automatic® and Super Select-Fire® are marks of Geissele Automatics, LLC. Other product names are marks of their respective owners. Pull weights are the manufacturers’ published, approximate figures.
Bombproof by Design™
Precision // Purpose // Performance