Rise Armament AR-15 Advanced Lower Parts Kit - 12003-ADV

Rise Armament AR-15 Advanced Lower Parts Kit

The RISE Premium Lower Parts Kit for AR-15s isn’t your standard LPK. It includes all the essential pins, springs, and hardware to complete your lower, but what sets it apart are the premium RISE Armament components that elevate your rifle’s performance and usability from the start.

Included in the RISE Armament Premium Lower Parts Kit: RISE Ambidextrous Safety Selector with captured detents, interchangeable paddles, and a 69-degree throw (1), RISE Enhanced AR-15 Takedown and Pivot Pins with concave faces, beveled edges, and tool-assist cavity (1 of each), RISE AR-15 Trigger Guard with swing-open design and aircraft-grade aluminum construction (1), RISE AR-15 Oversized Magazine Release Button with enhanced texture for improved control (1), RISE Enhanced AR-15 Bolt Catch for reliable lock-back and easy release (1), AR-15 Magazine Catch (1), AR-15 Trigger Pins, 5.56 (2), Safety Detent Pin (1), Safety Detent Spring (1), Takedown/Pivot Pin Detents (2), Springs for Takedown/Pivot Detents, 5.56 (2), Spring for Mag Catch (1), Bolt Catch Spring (1), Bolt Catch Plunger (1), Bolt Catch Roll Pin (1), Buffer Retention Pin (1), Spring for Buffer Retainer, 5.56 (1) and Trigger Guard Pin (1).

Features

• RISE Ambidextrous Safety Selector – Built with captured detents that stay in place during installation, so you don’t lose time or parts. It features interchangeable short and long paddles, letting you customize the feel and fit. The 69-degree throw enables quicker transitions without compromising safety or control, making it ideal for fast-paced shooting or competition use.
• RISE Enhanced Takedown and Pivot Pins – Designed with a concave, contoured face that makes them easier to press, even with gloves or larger hands. A small cavity on the left side lets you use a pen tip or a bullet to push them out with control. The beveled edges help prevent scratching your receiver during disassembly.
• RISE Trigger Guard – Clean, low-profile design. Machined from aircraft-grade aluminum and built to swing open for cold-weather shooting with gloves.
• RISE Magazine Release Button – Oversized and precision-machined for a more secure feel and faster mag changes. The enhanced texture improves control, even in slick conditions.
• RISE Enhanced AR-15 Bolt Catch – Larger and textured for easier manipulation when locking the bolt back or releasing it during reloads. The improved surface gives you faster, more confident control under pressure.
• These standout parts aren’t just upgraded for looks. They’re engineered and made in specialized factories to make your rifle more functional, easier to build, and better to run. The kit also includes all the core springs, detents, and roll pins needed to finish your lower. Upgrade your foundation with components that improve function, reliability, and ease of use.