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The Rock River Arms National Match 2-Stage Trigger has been a go-to AR-15 upgrade for a couple of decades now, and it earned that reputation the old-fashioned way. This is a two-piece fire control group with a smooth first-stage take-up, a defined wall, and a crisp second-stage break that runs right around 4.5 to 5 pounds. The sear engagement sits behind the hammer to keep pull weight down, and the low-mass hammer speeds up lock time, which is exactly what you want when you're trying to hold a tight group at distance. Folks who shoot DA/SA pistols tend to love the feel here since the short take-up and clean break mimic that familiar single-action wall.
Every one of these kits ships pre-adjusted by Rock River gunsmiths as a matched pair, so you're not fiddling with springs or set screws to get a usable pull. It's designed for the AR-15 platform and also plays nice with AR-10 and DPMS-style LR-308 lowers. The pull is light and consistent shot to shot, which is a big step up from the mushy, gritty feel of a standard mil-spec trigger. Plenty of long-time owners report tens of thousands of rounds through these without a hiccup across 5.56, 6.5 Grendel, 300 Blackout and more.
This kit uses oversized .1555" hammer and trigger pins instead of the standard .154", which gives you a tighter, more secure fit in the receiver. They'll drop into just about any standard mil-spec lower without modification, though the snug pins sometimes want a light tap from a brass or rubber mallet to seat fully. Heads up that this one is built for lowers with .156" pin holes and is not meant for oversized Colt pins. It's a genuine no-gunsmithing upgrade that punches well above its price and holds its own against triggers costing a lot more.
It's built for standard mil-spec AR-15 lowers with .156" pin holes, and it also works in AR-10 and DPMS-style LR-308 receivers. The kit uses oversized .1555" pins for a snug fit and drops in without any modification to your lower. It is not designed for oversized .170" Colt pins, so if you're running a Colt lower, confirm your pin size first.
This model is tuned to a 4.5 to 5 pound pull, with a smooth first-stage take-up and a crisp second-stage break. Because it's a two-piece design, the exact feel can vary slightly depending on your lower's pin hole placement. Most owners describe it as a clean, medium-light pull once broken in.
No, this is a true drop-in upgrade that comes pre-adjusted by Rock River gunsmiths as a matched pair. Installation is straightforward using the included pins, though the oversized .1555" pins fit tight and may need a gentle tap from a brass or rubber mallet to seat fully. No filing or fitting of your receiver is required.
For the money it's tough to beat, and plenty of shooters put it right up there with triggers that cost significantly more. It delivers a genuinely crisp break with minimal creep and a positive, short reset. It's a favorite for varmint and long-range AR builds where a lighter, more predictable trigger helps with accuracy and shot placement.
| UPC | 842834105809 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AR0093NMK |
| Length | 5.0500 |
| Style | Drop-In |
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