Aero Precision AR15 LPK Minus – Lower Parts Kit without FCG, Grip, or Trigger Guard
Not Yet Rated | Write the First Review SKU: 222-AER-APRH100385C
UPC: 815421028133
MFG#: APRH100385C

The Aero Precision AR15 LPK Minus is designed for builders who want control over every detail of their rifle. Unlike a standard lower parts kit, the Minus kit excludes the fire control group (FCG), pistol grip, and trigger guard — making it the perfect choice for custom AR-15 builds where you plan to upgrade those components.

What Is an AR15 LPK Minus?

An AR15 Lower Parts Kit (Minus) is a build kit that contains all the small components required to finish a stripped lower receiver but leaves out parts many shooters prefer to replace with aftermarket options. That means you get Aero’s quality small pins, detents, springs, and controls while choosing your own trigger, grip, and trigger guard.

Key Features

• Custom-Build Ready – Excludes FCG, pistol grip, and trigger guard for maximum flexibility.

• Mil-Spec Fit – Compatible with AR-15 lowers built to mil-spec dimensions.

• Aero Precision Quality – Tight tolerances and reliable machining ensure smooth function.

• Complete Small Parts – Includes detents, pins, springs, selectors, and catches.

• Perfect Upgrade Path – Choose your own drop-in trigger, aftermarket grip, and enhanced trigger guard.

What’s Included

The Aero Precision AR15 LPK Minus comes with:

• Safety selector, spring, and detent

• Takedown pins, pivot pin, and detents

• Magazine catch, button, and spring

• Bolt catch, plunger, and spring

• Buffer retainer and spring

• Small pins and roll pins for assembly

Note: Fire control group, pistol grip, and trigger guard are not included.

Why Choose the AR15 LPK Minus?

• Custom Trigger Compatibility – Ideal if you plan to install a Geissele, CMC, or other aftermarket trigger.

• Aftermarket Grip Options – Select the Magpul, BCM, or other grip that best fits your shooting style.

• Enhanced Trigger Guards – Many shooters prefer upgraded guards for improved ergonomics and gloves-on use.

• Simplified Buying – No need to pay for parts you won’t use.

Compatibility

The AR15 LPK Minus is compatible with:

• Aero Precision AR-15 lowers

• Other AR-15 lowers built to mil-spec standards

• Builders looking for flexibility in choosing custom triggers, grips, and guards

Not intended for AR-10 or M5 lowers — Aero makes dedicated M5 kits for .308 builds.

Installation

Installation is straightforward with basic armorer’s tools such as punches, a small hammer, and protective tape. Aero parts are precision-machined to fit smoothly without unnecessary resistance, ensuring an easy build process.

FAQ:

Q: What does “Minus” mean in AR15 LPK Minus?
A: It means the kit does not include the fire control group, pistol grip, or trigger guard, giving you freedom to choose your own components.

Q: Does the kit come with all the small pins and springs?
A: Yes, the kit includes all required detents, pins, springs, selectors, and catches for completing an AR-15 lower.

Q: Can I use this kit for an AR-10 or M5 build?
A: No. This kit is for AR-15 lowers only. Aero Precision sells M5 kits for AR-10/.308 builds.

Q: Who should buy the Minus kit instead of a standard kit?
A: Builders who plan to use a custom trigger, aftermarket grip, or upgraded trigger guard benefit most from the Minus kit.

Q: Is this kit mil-spec?
A: Yes. The Aero AR15 LPK Minus is manufactured to mil-spec dimensions and fits standard AR-15 lower receivers.

Order Today

Get the flexibility you need for your custom AR-15 build with the Aero Precision AR15 LPK Minus. Designed to include the essentials and leave out the parts you want to upgrade, this kit is the ideal choice for builders who want precision, customization, and Aero’s trusted quality.