Free ground shipping on every contiguous U.S. order · Ships within 1 business day after payment/verification · Upgraded shipping processed same business day when ordered by 9:30 AM ET
Click the image to open it full size. Additional supplier images appear when available.
Why customers choose this item
✓Lower parts kit no FCG
✓Fits AR 5.56 and .223
✓Excludes trigger and grip
✓Black finish components
✓Partial lower parts kit
✓For AR platform builds
Product highlights
Lower parts kit designed for AR 5.56/.223 rifle platform assembly
Kit excludes fire control group and grip components for customized builds
Provides essential internal parts required for lower receiver completion
Precision manufacturing supports consistent fit and reliable firearm operation
Designed for long term durability under repeated use and maintenance cycles
Black finish components match standard AR platform build configurations
Product description
The Armaspec Gun Builder’s Lower Parts Kit ARM151-BLK is a lower parts kit designed for assembling AR-15 pattern lower receivers without a fire control group or grip.
This kit is compatible with AR-15 platforms chambered in 5.56/.223 and includes essential lower receiver components excluding the trigger group and pistol grip. It is manufactured using precise machining standards and durable materials for consistent fit. The Armaspec Gun Builder’s Lower Parts Kit ARM151-BLK is not a complete lower parts kit and is intended for partial builds or component replacement. This product is used for rifle assembly and maintenance in controlled workshop settings. In typical setups, the lower parts kit integrates with AR-15 lower receivers and supports proper installation of internal controls and hardware components.
Volume pricing for business and agency buyers, plus free ground shipping on most continental U.S. orders.
Business & agency accounts
Bulk discounts
Volume pricing, dedicated account management, ACH payment options, and special sourcing for businesses, agencies, law enforcement, and first responders.