Arm152-Blk Armaspec Lpk Sts 223/556 Blk
$83.33
The Armaspec Stainless Lower Parts Kit for AR-15 rifles in .223/5.56 is built for builders who already have a premium trigger and pistol grip in mind. This lower parts kit strips away the one-size-fits-all filler and gives you the essentials in stainless steel—so you're not paying for components you'll immediately swap out. If you're assembling an AR from a stripped lower and you've already sourced your trigger group and grip elsewhere, this kit saves money while delivering quality where it counts.
Armaspec machined these components from stainless steel to resist corrosion and wear, a meaningful step up from mil-spec phosphate. The kit includes their SFT 45/90 safety selector, a two-position design that replaces the standard ambi safety and gives you a shorter, more ergonomic throw—useful whether you're running a rifle for duty, competition, or precision shooting. Everything else in the kit pairs reliably with most AR-15 and AR .308 platform lowers on the market, so compatibility is straightforward.
Made in the USA and backed by Armaspec's lifetime warranty, this lower parts kit is the smart choice for a no-nonsense build when you're confident in your trigger and grip selections. You get stainless durability and the SFT safety upgrade without overpaying for parts destined for a drawer.
Key Features
- Stainless steel construction throughout for durability and corrosion resistance
- Includes Armaspec SFT 45/90 safety selector—shorter, more ergonomic throw
- Designed for builders who are supplying their own trigger group and pistol grip
- Compatible with most AR-15 and AR .308 platform lowers
- Made in the USA
- Lifetime warranty
Specifications
| Brand | Armaspec |
| Product | Stainless Lower Parts Kit |
| Caliber/Platform | .223/5.56 (AR-15) |
| Material | Stainless Steel |
| Finish | Stainless |
| Safety Selector | SFT 45/90 |
| Country of Origin | USA |
| Warranty | Lifetime |
Frequently Asked Questions
What's included in this lower parts kit?
The kit includes stainless steel lower components and the Armaspec SFT 45/90 safety selector. It does not include a pistol grip or fire-control group (trigger/hammer assembly), allowing you to supply your own matched trigger and grip.
Is this compatible with my AR-15 lower?
Yes, this kit is designed to fit most AR-15 and AR .308 platform lowers on the market. However, if you have an unusual or proprietary lower, verify fit before purchasing.
Why doesn't this kit include a trigger and grip?
Armaspec designed this kit for builders who already know they want a specific trigger and pistol grip. By omitting those components, you pay less and avoid replacing parts you didn't choose.
What's the difference between the SFT 45/90 safety and a standard safety?
The SFT 45/90 is a two-position design with a shorter, more ergonomic lever throw compared to a standard ambi safety, making it faster and more intuitive to operate.
