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Questions & Answers
What is the difference between large and small pins? I have a standard AR-!5 lower. Expert Answer

The VAST majority AR-15 receivers are “small pin” receivers (this is mil-spec), but some older Colt AR’s are “large pin” receivers. This refers to the size of the FRONT takedown pin hole. If you have any question, just measure the front takedown pin hole. If it’s.25″, then you have a small pin receiver..315″ is the large pin.

by Todd, Gear Expert, September 21, 2021
Customer Reviews
Expert Review
High quality drop in solution by Armando R., Gear Expert, May 31, 2017
Received my Elftmann trigger and installed it into a mil-spec lower receiver. Have not run into any issues thus far with the trigger in my lower and have not experienced any backing out of screws/pins or other issues. The trigger is extremely crisp o...
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1/3 found this helpful
Helpful Positive Review
Excellent product by Szito, February 4, 2018
Excellent product. Straight forward install. Install can be a little pain with the springs as you are installing the set screws. Otherwise very quality product and the pull is excellent. Will be using in my sbr on a new build. This is my s...
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1/2 found this helpful
Helpful Positive Review
I picked up one of these for my latest build. It is easy to install. Drops right in. Has an adjustable trigger pull that is super easy to use and easy to dial into your own personal taste. I enjoy the lighter pull, and this goes down to 2 1/2 Lbs. Se...
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1/1 found this helpful
Helpful Negative Review
Buyer Beware of possible DAMAGE to UPPER by Chris, Verified Owner, February 5, 2017
Trigger felt good and worked well at the beginning, however as I ran more rounds through my AR, the trigger pull adjustment screw slowly backed out and interfered with hammer. This caused the hammer and BCG to slowly bind and stretch the rear take-do...
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5/9 found this helpful
Most Recent Reviews
Excellent trigger by Proud 2 B From Texas, January 13, 2018
Bought this triggerbecause my Ar-15 has a dedicated 7.62x39 upper & was worried about light primer strikes from diffrent trigger manufactures. The accuracy improvment was more than I expected from my old milspec trigger. I would definitely recommend
Read All 5 Reviews

Product Discontinued by Manufacturer

Elftmann Tactical ELF Service Trigger has been discontinued by Elftmann Tactical and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, Rifle Triggers, AR15 Lower Parts, AR Triggers yourself to try and find the perfect replacement for you!

Product Info for Elftmann Tactical ELF Service Trigger

The Elftmann Tactical AR15 Service Trigger is a drop-in design built primarily for law enforcement and military applications. These AR Triggers by Elftmann Tactical are high-grade, and use aerospace-grade needle bearings for a uniquely smooth trigger pull. The heavier hammer of the Elftmann Tactical AR-15 Trigger System combines with the double wood piano wire hammer spring to provide a reliable ignition on all ammo. For a high-quality, mil-spec trigger for your favorite AR-15, choose the Elftmann Tactical ELF AR15 Trigger.image

Features of Elftmann Tactical AR15 Service Trigger:

  • Fits any mil-spec AR-15 (Large pin Colt available)
  • Absolutely Drop-Safe regardless of pull-weight
  • Adjustable from 4lbs to 7lbs without removing from lower
  • Exclusive double wound hammer spring and heavy hammer ensure proper ignition of any ammunition
  • Very short pull and reset allows for rapid follow up shots and greater accuracy
  • Sturdy trigger assembly designed for rugged, trouble-free use; Made of lightweight aircraft-grade aluminum and hardened steel
  • Unique design of disconnect allows full 1/4in width eliminating possibility of wear and double-firing
  • High performance trigger and hammer needle bearings for smoother and faster firing
  • Lifetime Guarantee

Package Contents:

  • Elftmann Tactical ELF Service Trigger
  • Allen wrench

Elftmann Tactical ELF Service Trigger Accessories

115 / 15
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Gunsmithing Tools & Accessories

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Gun Triggers

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Magazine and Accessories

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Gun Parts and Accessories

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Gun Barrels

112 / 12

Gun Stocks

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Gun Sights

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Mounts, Rings and Accessories

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Related Products to Elftmann Tactical ELF Service Trigger

Elftmann Tactical ELF Service Trigger Unavailable & Discontinued Models

List of Unorderable Models

  • Elftmann Tactical Elftmann Service Trigger Straight SERVICE-S , MPN: SERVICE-S , UPC: 736902490044 , Code: EFT-ART-ESTRIG-SERVICE-S
  • Elftmann Tactical Elftmann Service Trigger Curved SERVICE-C , MPN: SERVICE-C , UPC: 736902490068 , Code: EFT-ART-ESTRIG-SERVICE-C
  • Elftmann Tactical Elftmann Service Trigger Straight LRG Pin SERVICE-S.170 , MPN: SERVICE-S.170 , UPC: 736902490037 , Code: EFT-ART-ESTRIG-SERVICE-S-170
  • Elftmann Tactical Elftmann Service Trigger Curved LRG Pin SERVICE-C.170 , MPN: SERVICE-C.170 , UPC: 736902490051 , Code: EFT-ART-ESTRIG-SERVICE-C-170
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