$222.75
44 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The Yankee Hill Machine YHM-125 is a no-frills stripped lower receiver purpose-built for AR builders who want a solid foundation without extra flash. Machined entirely in-house from forged 7075-T6 aluminum and hardcoat anodized to military specifications, this receiver brings the durability you need with the simplicity builders appreciate.
The oversized magazine well chamfers on this lower make magazine changes noticeably smoother during reloads. That flared magwell isn't just about speed either—it reduces the chance of fumbling magazines under pressure. It accepts all generations of PMAGs and pairs seamlessly with mil-spec upper receivers, so your parts bin compatibility isn't a concern.
Yankee Hill designed this receiver to fit standard AR-15 parts without modification. Unlike some lowers that have quirks or compatibility headaches, the YHM-125 works like it should. To complete your build, you'll need a lower parts kit containing your trigger, hammer, safety, and fire control group components, plus a buffer tube assembly and stock. The receiver itself is finished—no extra machining or work required on your end.
The 7075-T6 aluminum used here is significantly stronger than the 6061-T6 alternative, and it's what the military specifies for receiver components. This material choice means your lower can handle the stresses of repeated assembly, disassembly, and years of shooting. The hardcoat anodize finish protects against wear and corrosion while maintaining lubricity for smooth parts movement.
A stripped lower like the YHM-125 requires three main components to function: a lower parts kit with your trigger and fire control group, a buffer tube assembly with buffer and spring, and a stock or brace. You can source these separately to match your specific build preferences.
Yes. The YHM-125 is mil-spec and designed to work with all standard AR-15 lower parts kits and mil-spec upper receivers. The oversized magazine well chamfers don't interfere with compatibility—they just make magazine changes easier.
7075-T6 is nearly twice as strong as the 6061-T6 alternative and meets military specifications for receiver components. It resists stress better during repeated assembly and disassembly while maintaining excellent corrosion resistance when hardcoat anodized.
No, this model accepts a standard removable trigger guard that comes as part of a typical lower parts kit. Yankee Hill also produces a billet version with an integrated trigger guard if you prefer that design.
The flared magwell reduces friction when inserting or removing magazines, making reloads noticeably smoother. This feature proves especially helpful during transitions between magazines or under time pressure at the range.
Yes, Yankee Hill machines the YHM-125 entirely in-house from forged 7075-T6 aluminum to exacting tolerances, then finishes it with hardcoat anodize to military specifications or better.
| UPC | 816701011272 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 125 |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Length | 8.7500 |
| Model | |
| Product Type | Stripped |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
You must be logged in to post a review.
Reviews
There are no reviews yet.