SKU: 169956
UPC: 856822007846
MPN: XTT138LPK
The Xtech Tactical XTT138LPK Lower Parts Kit in Black provides everything required to convert a stripped lower receiver into a fully functional lower assembly. This complete lower parts kit includes all necessary internal components—trigger group, hammer assembly, selector, bolt catch mechanism, magazine catch assembly, springs, pins, and hardware—along with Xtech Tactical's heavy-texture pistol grip. Designed for builders prioritizing component quality and assembly completeness, this kit eliminates the need to source individual parts from multiple suppliers.
The kit includes a semi-auto trigger, semi-auto hammer, and semi-auto disconnector, with corresponding springs and detent assemblies for reliable operation. The enhanced polymer trigger guard and textured pistol grip combination improve ergonomic control and reduce slippage during extended handling. All springs—hammer, trigger, bolt catch, and magazine catch springs—are pre-selected for proper function, and roll pins are included for secure component retention. The finish is consistently black across all components, ensuring uniform appearance on the completed lower receiver.
This lower parts kit serves builders of all experience levels who are assembling rifles from stripped lower receivers. Whether constructing a rifle for home defense, sport shooting, or tactical training, this kit consolidates the small-parts assembly phase into a single, well-organized package. The semi-auto configuration meets standard civilian specifications, and the complete bill of materials eliminates guess-work regarding part compatibility. Weighing 0.57 lbs, the kit ships compactly and organizes easily for bench assembly.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.