Timney AR-15 Competition Trigger | Straight | Large Pin | 4.5 lb
The Timney AR-15 Competition Trigger in the 669L-ST configuration is a straight-shoe, large-pin trigger built for AR-15 lower receivers that require the large-pin format. This model uses a fixed 4.5 lb pull weight and Timney’s drop-in cassette-style design, giving builders a clean trigger upgrade without fitting, adjustment, or gunsmithing.
Timney’s AR-15 Competition Trigger is known for its crisp, clean break and non-adjustable setup. The self-contained cassette format keeps installation straightforward, while the straight trigger shoe gives the trigger face a consistent feel for shooters who prefer a flatter press surface over a traditional curved shoe.
This large-pin variant is especially important for buyers working with compatible Colt-style large-pin AR-15 lowers rather than standard small-pin receivers. The 4.5 lb pull weight offers a slightly heavier option within the Competition Trigger family, making it a practical choice for shooters who want a clean break while retaining a more deliberate trigger press.
Timney lists the AR-15 Competition Trigger as a 100% drop-in trigger that does not require anti-walk pins. Each unit is hand-assembled, tested, and calibrated by Timney, and the trigger is backed by the company’s lifetime warranty. It is also proudly made in the USA.
- Platform: AR-15
- Trigger Shoe: Straight
- Pin Size: Large Pin
- Pull Weight: 4.5 lb
- Trigger Type: Drop-in cassette-style trigger
- Adjustment: Non-adjustable
- Anti-Walk Pins: Not required
- Warranty: Timney lifetime warranty
- Country of Origin: Made in USA
Product Information
| Manufacturer | Timney |
|---|---|
| Platform | AR15 |
| Trigger Type | Drop In, Fixed Pull Weight |
| Trigger Action | Single Stage |
| Total Pull Weight | 4.5lb |
| Trigger Shoe | Flat |
| Material | S7 Tool Steel, A2 Tool Steel |
| Finish | Anodized, QPQ Nitride |
| Color | Black, Gold |
| Compatibility | Colt, Standard AR15 components |
| Made in USA | Yes |
| Pin Size | 0.169 (Large Pin) |
| Housing | 6061 Aluminum |
















