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Armaspec

Ar-15 Gun Builders Lower Parts Kits Stainless .223/5.56 - Gun Builders Stainless Lower Parts Kit .223/5.56 Black

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Stainless Steel

AR-15 builder’s lower parts kit

Lower Parts

Kit is sold less trigger

Includes Armaspec

SFT 45/90 safety selector

Enhanced Takedown

Stainless detents and springs

Includes Stainless

Anti-walk trigger and hammer pins

$67.49
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SKU: 100038298

Overview

Built for AR-15 owners assembling or refreshing a .223/5.56 platform, this lower parts kit brings together the core components needed for a lower receiver build, minus the trigger group and grip. It includes an Armaspec SFT 45/90 safety selector, bolt catch, enhanced takedown and pivot pins, and stainless steel detents, springs, and anti-walk pins. The stainless steel construction and black finish give it a clean, purpose-driven look suited to a serious build. For hunters and shooters who want a complete builder’s kit in one package, it offers a straightforward parts set without adding unnecessary extras.

Why Hunters Choose the Armaspec

Stainless Steel

Builder’s kit for AR-15 .223/5.56

Includes Core

Lower parts for a complete

Fits Ar

5.56/.223 configurations

Armaspec Sft

45/90 safety selector

Includes Enhanced

Pins and detents for the

Key Features

  • Stainless steel AR-15 builder’s lower parts kit for .223/5.56 platforms
  • Lower parts kit is sold less trigger group and grip
  • Includes Armaspec SFT 45/90 safety selector
  • Features enhanced takedown and pivot pins with stainless detents and springs
  • Includes stainless anti-walk trigger and hammer pins
  • Fits AR 5.56/.223 builds

Best Used For

  • AR-15 builders assembling a .223/5.56 lower parts kit without the trigger group or grip
  • Shooters wanting an Armaspec stainless steel lower parts kit for a compatible AR 5.56/.223 build
  • Users replacing lower receiver control parts with included selector, pins, detents, and springs
  • Builders who prefer a U.S.-made kit backed by a lifetime warranty from the retailer data

Specifications

Bolt CatchIncluded
Enhanced Pivot PinIncluded
Enhanced Take Down PinIncluded
Fits Ar 5 56 223Yes
Grip IncludedNo
Lifetime WarrantyYes
Made In U S AYes
Pivot Detent SpringIncluded
Safety SelectorArmaspec SFT 45/90 Safety Selector
Stainless Steel Anti Walk Hammer PinIncluded
Stainless Steel Anti Walk Trigger PinIncluded
Stainless Steel Pivot DetentIncluded
Stainless Steel Takedown DetentIncluded
Takedown Detent SpringIncluded
Trigger Group IncludedNo

Pros

  • Stainless steel builder’s kit for AR-15 .223/5.56 platforms
  • Includes core lower parts for a complete builder-focused package
  • Fits AR 5.56/.223 configurations
  • Features Armaspec SFT 45/90 safety selector
  • Includes enhanced pins and detents for the lower parts assembly
  • Backed by a lifetime warranty from Armaspec

Considerations & Trade-offs

  • This kit is a lower parts package only and is listed as less trigger group and grip, so those components must be sourced separately.
  • It is specified for AR 5.56/.223 fitment, so it is not a universal lower parts kit for other platforms or chamberings.
  • The included components are focused on builder hardware and controls; it does not present itself as a complete rifle assembly solution.
  • The product description emphasizes stainless steel parts, but buyers should still verify compatibility with their specific build and existing components.

Suggested Comparisons

  • AR-15 lower parts kits
  • AR-15 builder kits
  • AR-15 safety selector upgrades
  • AR-15 small parts kits

Suggested Accessories

  • Trigger group
  • Pistol grip
  • AR-15 lower receiver parts
  • Gun cleaning kit

Frequently Asked Questions

What rifle platforms does this lower parts kit fit?

According to the product data, it fits AR 5.56/.223 platforms.

Does this kit include the trigger group and grip?

No. The long description states it is a lower parts kit less Trigger Group & Grip.

What parts are included in the kit?

The listed contents are: Armaspec SFT 45/90 Safety Selector, bolt catch, enhanced takedown pin, stainless steel takedown detent, takedown detent spring, enhanced pivot pin, stainless steel pivot detent, pivot detent spring, stainless steel anti-walk trigger pin, stainless anti-walk hammer pin, and a stainless steel spring component listed in the source text.

What material is this kit made from?

The short description says it is made from stainless steel, and the product title also identifies it as a stainless lower parts kit.

Is there any warranty information provided?

Yes. The long description states that it has a lifetime warranty.