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Questions & Answers
Does this come with the buffer retainer? Manufacturer Answer

This kit comes with a buffer retainer pin.

by Strike Industries, Manufacturer, April 2, 2025
Can i use as a normal safety and not ambidextrous?

you can choose and arrow on the other side if you wish.

by modflip, Verified Owner, July 2, 2025
Customer Reviews
Helpful Positive Review
A little something different by some guy on the net, Verified Owner, September 2, 2018
Used this little kit on a recent build, an Aero M4E lower and upper where used. This has slightly different lines and what not than your usual AR lower. All parts work as they are suppose too. Now I am giving in 4 stars simply in that, while I like...
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21/25 found this helpful
Helpful Positive Review
First build! by 2A, Verified Owner, June 29, 2024
Exactly what I was looking for! An LPK that offered an ambi safety selector switch at an affordable price.
1/1 found this helpful
Helpful Positive Review
Proven wrong by Built not bought, November 12, 2024
I had always looked at Strike Industries as a "Gucci" AR parts company and swore that they only way I'd ever buy them was if I had no other options. I bought this and now they are my go to for lower parts. These are nice, clean, just like any other L...
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1/2 found this helpful
Helpful Positive Review
Strike Industries parts kit by Pat Mass, Verified Owner, October 28, 2025
The parts that come with this kit fit and function well. My only 2 beefs are: 1. The sharp pointer on the safety can be a bit of an issue if you take a finger across it. 2. I wish they would have made one of the safety selector arms shorter. It affe...
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1/1 found this helpful
Helpful Positive Review
Strike Industries Enhanced parts kit by Mrtbk, Verified Owner, February 19, 2020
This is a good kit that includes everything you will need. This is the second one I got and I’m extremely pleased. I have built 2 AR’s and this is my go to. As a beginner builder and help with You Tube everything went as planned. The second build was...
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1/1 found this helpful
Helpful Positive Review
The Best kit for your lower by Tom, April 14, 2020
Everything you need with better parts than the basic LPK. Not only fuction better but also enhances the appearance of your AR. It is also much more affordable as a kit instead of buying the pieces individually
1/1 found this helpful
Read All 110 Reviews
Color:
Black
Gun Make:
AR Platform
Gun Model:
AR-15
Condition:
New

Code: 3Q-LPK-ELPRL-SI-AR-E-LRPLT

MPN: SI-AR-E-LRPLT

UPC: 708747544961

List: $55.95Save $2.00
$53.95

Product Info for Strike Industries Enhanced AR-15 Lower Parts Kit

For a custom build, pick up the Strike Industries AR Enhanced Lower Receiver Part Kit. These AR15 Lower Parts from Strike Industries include some standard parts and some of Strike Industries' proprietary enhanced parts. But the Strike Industries AR Enhanced LPK does not include some commonly upgraded parts - the trigger, hammer, disconnect and grip. So you get enhanced parts, plus the flexibility to use equipment that strikes your fancy for the omitted parts. Choose the Strike Industries AR Enhanced Lower Receiver Part Set for great fit, great feel, and great function.image

WARNING: California`s Proposition 65

Specifications for Strike Industries Enhanced AR-15 Lower Parts Kit:

Manufacturer: Strike Industries
Color: Black
Gun Make: AR Platform
Gun Model: AR-15
Weight: 5.2 oz
Condition: New

Features of Strike Industries AR Enhanced Lower Receiver Parts less Trigger, Hammer& Disconnect:

  • Includes SI signature Enhanced Lower Parts (AR-EBC, AR-EMC, AR-EPTP, and AR-HS-60/90-3in1)
  • SI Trigger Springs provide a consistent 4.5 to 5.5 lbs trigger pull with our fire control group

Package Contents:

  • Strike Industries AR Enhanced Lower Receiver Parts Less Trigger, Hammer and Disconnector
  • Bolt Catch Spring - easily confused with the disconnector spring disconnector spring is tapered though.
  • Buffer Retainer Spring - second largest coil type spring in the kit.
  • Disconnector Spring slightly larger than bolt-catch spring identifiable because one end is a little bit wide than the other.
  • Hammer Spring - largest of all the springs.
  • Magazine Catch Spring - this is the largest coil spring in the kit.
  • Pivot Detent Spring - same as the takedown detent spring so there are two in a kit.
  • Selector Spring - similar to the takedown and pivot detent springs but larger diameter there will only be one of these.
  • Takedown Detent Spring - same as the pivot detent spring so there are two in a kit.
  • Trigger Spring - the smaller of the two largest springs.
  • Enhanced Bolt Catch - features improved grip surfaces and angles
  • Strike Magazine Catch
  • Strike Magazine Catch Button - features improved grip surface
  • Enhanced Pivot Pin - longer of the two large pins.
  • Enhanced Takedown Pin - smaller of the two large pins.
  • SI Selector Lever - 2 included in package
  • SI Selector End Plate
  • SI 60-90 3-in-1 Selector Shaft - with screws
  • Bolt Catch Plunger mushroom shaped pin
  • Bolt Catch Roll Pin - smaller of the two roll pins.
  • Hammer Pin solid pin with machined grooves can be inserted from either side.
  • Pivot Detent - same as takedown detent both sides usually rounded or semi-conical.
  • Selector Detent - one end is flat the other pointed/semi-conical.
  • Takedown Detent - same as pivot detent both sides usually rounded.
  • Trigger Pin - same as hammer pin can be inserted from either side.
  • Buffer Retainer large hollow barrel with small pin protruding from the top
  • Highlighted parts are SI exclusive ENHANCED components

Strike Industries Enhanced AR-15 Lower Parts Kit Orderable Models

List of Orderable Models

  • Strike Industries Enhanced AR-15 Lower Parts Kit, Hammer / Disconnector, Black, One Size, SI-AR-E-LRPLT , MPN: SI-AR-E-LRPLT , UPC: 708747544961 , Code: 3Q-LPK-ELPRL-SI-AR-E-LRPLT

Strike Industries Enhanced AR-15 Lower Parts Kit Unavailable & Discontinued Models

List of Unorderable Models

  • USED Strike Industries AR Enhanced Lower Receiver Parts Less Trigger, Hammer and Disconnector, Black, One Size, SI-AR-E-LRPLT, EDEMO4, Used, Condition Fair , MPN: SI-AR-E-LRPLT-EDEMO4 , Code: 3Q-LPK-ELPRL-SI-AR-E-LRPLT-EDEMO4
  • USED Strike Industries AR Enhanced Lower Receiver Parts Less Trigger, Hammer and Disconnector, Black, One Size, SI-AR-E-LRPLT, EDEMO5, Used, Condition Fair , MPN: SI-AR-E-LRPLT-EDEMO5 , Code: 3Q-LPK-ELPRL-SI-AR-E-LRPLT-EDEMO5
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