Sionics Weapon Systems AR-15 Deluxe Lower Parts Kit - Ambi Safety - K2 Grip

Manufactured by Sionics Weapon Systems
Manufactured by Sionics Weapon Systems
2 Reviews

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Build out your new lower with the Sionics Weapon Systems Enhanced AR-15 Lower Parts Kit. This AR-15 LPK comes with everything you need including a Magpul K2 pistol grip—one of the most popular on the market. This pistol grip has a comfortable shallow angle and features a compartment for storing batteries or tools. The Enhanced Mil-Spec trigger is PTFE coated for a smooth, grit free pull and a consistent break at about 6.5 lbs. None of the engagement surfaces have material removed to improve reliability and safety while the slick coating does all the work to remove friction. Additionally, this version includes an ambidextrous safety selector.

Kit includes:
  • 1- SIONICS Enhanced Trigger  
  • 1- Semi Auto Disconnect 
  • 1- SIONICS Enhanced Hammer  
  • 2- Hammer / Trigger Pin 
  • 1- Trigger Spring 
  • 1- Hammer Spring  
  • 1- Disconnector Spring  
  • 1- Ambi Safety Selector  
  • 1- Safety Detent 
  • 1- Safety Detent Spring  
  • 1- Standard Bolt Catch  
  • 1- Bolt Catch Plunger  
  • 1- Bolt Catch Roll Pin  
  • 1- Bolt Catch Spring  
  • 2- Takedown / Pivot Spring 
  • 2- Takedown / Pivot Detent  
  • 1- Takedown Pin 
  • 1- Pivot Pin 
  • 1- Mag Catch
  • 1- Mag Release Button 
  • 1- Magazine Catch Spring  
  • 1- Buffer Retainer Pin 
  • 1- Buffer Retainer Spring
  • 1- Magpul MOE K2 Grip
  • 1- Magpul Polymer Trigger Guard

A SIONICS Weapon System is a firearm that is more than just built from the ground up by master gunsmiths for professionals in the field. They're more than just an assembly of quality components. Every firearm built by SIONICS has been carefully crafted from the best components available by a single master gunsmith before a second master gunsmith puts it through a 19-point quality inspection and test firing process to ensure that ever SIONICS firearm has been built without compromise.
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BrandSionics Weapon Systems
Fire Control GroupSingle Stage Trigger

Ratings & Reviews

2 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 1 star
  • 0 reviews


by -

For the price, I’m very disappointed. Kit came jumbled together and unorganized in a plastic bag. Lower parts kits for a fraction of this at least come organized so you don’t have to dig through everything to find the right spring.
<br>The worst part, however, were the roll pins for the trigger guard and bolt release. They were grossly oversized. It would take you a bottle of oil, channel locks, a heavy hammer, and an hour of your time just to get one of them half way in. You’ll probably end up doing a number on the finish of your receiver as well. I literally had to punch the pins out of another build just to assemble the rifle. Should have just returned the whole kit and bought something else.

Solid, easy, excellent trigger

by -

I purchased this earlier in the year and just now had the chance to install it in my Aero lower. The parts were in one single bag - but anyone with a brain can determine which springs are which.
<br>The parts were sized perfectly - no sanding or machining to get them to fit. The ambi safety is a nice touch as I shoot left handed. I would say that the long arm gets in the way but it's just something to get used to.
<br>The trigger - wow. Nice and crisp. Way better break than my Tom's Tactical 2 stage and my PSA NB.
<br>This kit is about twice as much as other kits but I'd totally buy it again.