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AR-15 Lower Parts Kit
AR-15 Lower Parts Kit
AR-15 Lower Parts Kit
AR-15 Lower Parts Kit
AR-15 Lower Parts Kit
AR-15 Lower Parts Kit
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LUTH-AR LLC - AR-15 Lower Parts Kit

12 Reviews
AR-15 Lower Parts Kit
Brownells #
100027868
MFR #
LRPK-1
UPC
859992007647
$55.92
Coupon Code
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Specifications
Item Length (Inches):
5.000
Item Width (Inches):
6.000
Item Height (Inches):
2.000
Item Weight (lbs):
1.000
Make Model Fit:
AR-15.Universal
Quantity:
1
Restriction
Restricted Part:
Yes
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What is the LUTH-AR LLC - AR-15 Lower Parts Kit?

LUTH-AR LLC AR-15 LOWER PARTS KIT


The LRPK-1 AR-15 Lower Receiver Parts Kit from Luth-AR contains all the parts, down to the last spring and pin, to turn a stripped lower into a complete receiver ready for the buffer tube, buffer system and stock of your choice. Sure, we sell all of these parts separately, and Luth-AR has made a big name for itself in the last few years as a supplier of top-quality AR-15 accessories AND basic mil-spec parts. But why chase down all of these mil-spec commodity parts separately when this parts kit provide easy, "one and done" ordering? This parts kit includes complete, mil-spec AR-15 fire control components - trigger, hammer, disconnector, and all the pins-n-springs. Just note that it's not a drop-in module, so you will have to assemble the parts.


Here are the complete contents of the LLRPK-1 lower receiver parts kit:

  • Buffer Retainer & Buffer Retainer Spring
  • Triggerguard & pin
  • Safety selector lever + detent
  • Selector/Ejector spring
  • Bolt Catch + spring, plunger & roll pin
  • Magazine catch
  • Magazine release button (aluminum)
  • Front pivot pin
  • Rear takedown pin
  • 2x Takedown/pivot pin detents
  • 2x Detent springs
  • Trigger
  • Trigger spring
  • Hammer, mil-spec w/J spring
  • Hammer spring
  • 2x hammer/trigger pin
  • Disconnector
  • Disconnector spring
  • Mag Catch/Buttstock Plunger Spring 1-ea.
  • A2 pistol grip (black plastic)
  • Pistol grip bolt (slot-head)
  • Pistol grip lock washer


The Luth-AR folks also thoughtfully includes a standard A2-type plastic pistol grip that'll get you up and shooting until you decide if you want a fancier, aftermarket grip. A lot of AR-15 shooters have spent their entire careers using the A2 grip, but if you want to upgrade, Brownells offers a LOT of options. Get the Luth-AR LLRPK-1 lower receiver parts kit, and you'll be sure that when you sit down at your workbench to assemble your next AR-15, completion of your project won't be held up for lack of one or two small parts!

See all of our AR15s and AR15 parts here.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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AR-15 LOWER PARTS KIT REVIEWS

4.6
12 Reviews
5 Stars
67%
4 Stars
25%
3 Stars
8%
2 Stars
0%
1 Stars
0%
Reviews Summary
Overall, the AR-15 Lower Parts Kit by Luth-AR is well-received for its organized packaging and good quality of parts, making assembly accessible for both beginners and experienced builders. Some users noted inconsistencies in trigger quality, and there were occasional issues with specific components, but generally, the kit offers great value for its price.
What Reviewers Are Saying
Product Quality
73%
Reviewers often commented on both the quality and consistency of the parts included in the kit. While many expressed satisfaction with the functioning of the components, some noted a decline in overall quality compared to previous experiences, particularly regarding the trigger's performance.
Ease of Assembly
68%
Many users highlighted the ease of assembly, appreciating how straightforward the installation process was. The organized packaging and clear labeling were also noted as helpful features that made the build experience smoother, especially for beginners.
Packaging
65%
The packaging received significant praise for being well-organized, keeping parts separated and labeled, which helped prevent losing small components during assembly. This feature was particularly appreciated by newer builders seeking clarity and order.
Inconsistent Trigger Quality
50%
Several reviews pointed out that while the trigger performance could be decent, there were instances where one trigger was significantly inferior in quality. This inconsistency prompted some users to suggest adjustments or modifications before finding satisfactory performance.
Value for Money
60%
Most reviewers agreed that the kit provides excellent value for its price, especially considering the quality of components and the organized packaging. Users expressed that investing in this kit saved them money compared to more premium trigger solutions without sacrificing too much performance.
5
Good Quality...
The LUTH-AR LPK is a good quality basic mil spec LPK. It's even better with JP .156" hammer- trigger pins sold on this site. And it's even better with the hammer spring legs adjusted to 5 o'clock. Trigger has a smooth take up to the wall and breaks clean. Very satisfied.
by John In LA on May 17, 2022
Was this review helpful? 2
5
Works well, made it better
For a mil-spec rifle, this is the ticket. I was nervous about springs flying all over when I first started installing everything, but honestly for a guy at his dining room table it was pretty uneventful! The hardest parts were the detent spring for the pivot pin and the fire control group. But nothing was remotely difficult to the point where I considered having a gunsmith do it for me. Now this part may not be for everybody. But I oiled a 2000-grit sanding block and smoothed out the contact points between the trigger and hammer. Not altering the geometry, but simply taking out the machining marks left by the manufacturing process. Resulted in a much inproved trigger pull with the same characteristics of a mil-spec unit. No grittiness of any kind! Of course I could've dropped $200+ on a drop-in trigger and gotten better results - but this is plenty good enough for me, and I can spend that $200+ on ammo now!
by Ric on April 02, 2022
Was this review helpful? 4
5
Luth-ar parts kit
Used for a carbine build. All parts were sized correctly and installed easily. Did not usecthe A2 grip, had a different one that i prefer.
by Mike on March 21, 2022
Was this review helpful? 2
5
Chuck (from Colorado)
Great value for the price! I used this kit on my latest recreational shooting lightweight AR-15 build. 1. Packaging: (GREAT) keeps your parts well-organized, and the packaged components are in numbered blisters / pockets with the key printed on the back side of the package card. AND there's a strip of tape running on the back side of the blisters inside the blister pack to keep the parts in the blisters after you open the package (you don't get the parts flying all over the floor when you finally open the package after a struggle). I didn't drop a part during my last build. ((Tip: I slit the tape on each blister as I needed to pull out a part, and then used my automotive magnetic pickup tool to pull the small parts (springs, pins) so I wouldn't drop them on my garage floor. Worked great! )) 2. The Trigger: It's a straight MILSPEC trigger (I have 27 years in the military, and 10+ years in LE). It's the best of the mass-market bulk triggers I've bought. The sear and hammer were smooth on the contact/release surfaces, and I didn't feel any "crunchy" movement while taking up the slack. I checked the surfaces before installing and they were smooth (not quite as good as if they were stoned), but much better than others I've installed. Trigger pull is smooth and constant to hammer release. 3. It's made in USA in Minnesota
by Chuck from Colorado on January 23, 2022
Was this review helpful? 4
5
Great parts at a great Price!!
I really like the way LuthAR lays out all the parts in the package, though the plastic container is very hard to get INTO. But once this is over, all the parts fit and worked perfectly. CON - but not enough to lower my rating, was the fact that out of two kits, one had a very decent trigger pull (with creep of course), but the 2nd one was like trying to walk on sharp gravel down a country road - IT WAS HORRID. I guess I need to get a stone and clean it up, but "com'on man!!" {reference to Sleepy Joe-LOL}, a little more attention to detail and the sear face would help us poor slobs out that don't own stones and DO NOT HAVE THE TIME to mess with them either!!! Other than this hiccup, I would definitely recommend this parts kit to anyone!!!
by AKMguy on July 18, 2021
Was this review helpful? 2
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