LBE Unlimited AR-15 Lower Parts Essentials Kit Springs Detents
LBE Unlimited
$10.69
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LBE Unlimited
LBE Unlimited AR-15 Lower Parts Essentials Kit Springs Detents
The LBE Unlimited AR Essentials Kit is a comprehensive collection of US-made small parts designed to keep your AR-15 build running reliably — whether you're assembling a new rifle or restoring a well-used favorite.
- Includes all critical small parts for a complete AR-15 lower build
- Manufactured in the USA to mil-spec dimensions and tolerances
- Bolt catch plunger, spring, and roll pin included for secure installation
- Buffer retainer and spring ensure proper buffer tube function
- Hammer, trigger, and disconnector springs for reliable trigger group performance
- Hammer pin included — everything you need in one convenient kit
Who This Is For
This kit is ideal for AR-15 builders tackling their first lower receiver build, gunsmiths stocking their service bench, and responsible owners who want critical spare parts on hand before they're ever needed. If you've ever been sidelined by a broken detent spring or a lost buffer retainer, this kit is your insurance policy.
Specifications
| Brand | LBE Unlimited |
|---|---|
| Country of Manufacture | United States |
| Compatible Platform | AR-15 / .223 / 5.56 |
| Standard | Mil-Spec |
| Included Parts | Bolt Catch Plunger, Bolt Catch Spring, Bolt Catch Roll Pin, Buffer Retainer, Buffer Retainer Spring, Disconnector Spring, Hammer Spring, Trigger Spring, Hammer Pin |
| Part Count | 9 Components |
| Intended Use | New Builds & Parts Replacement |
| Category | Springs / Detents / Small Parts |
Frequently Asked Questions
Is this kit compatible with all AR-15 lower receivers?
Yes. The LBE AR Essentials Kit is built to mil-spec dimensions, making it compatible with the vast majority of mil-spec AR-15 lower receivers from any major manufacturer. Whether you're building on a forged, billet, or stripped lower, these parts should drop right in without modification.
Does this kit include everything needed to complete a lower parts kit build?
This kit covers the most commonly needed small parts and springs, but it is not a full lower parts kit (LPK). It does not include the trigger, hammer, disconnector, safety selector, pistol grip, or magazine release components. It's best used as a supplement to a complete LPK or as a spare parts solution for servicing an existing build.
How do I know when these springs and detents need to be replaced?
Signs of wear include a sluggish trigger reset, failure of the buffer retainer to hold position, or a bolt catch that doesn't return smartly. Springs can fatigue over thousands of rounds or through prolonged compression. Having a kit like this on hand means you can diagnose and fix issues quickly without waiting on a parts order during your next range session.
