Don’t let a missing detent or spring put your build on hold! We recommend always having one or two of these on-hand.
OOPS! Kit Includes:
Bolt Catch Detent, Bolt Catch Pin 3/32″³ x 1/2″³ Coiled Pin, Bolt Catch spring Buffer Detent, Buffer Detent spring Disconnect spring Magazine Catch Spring for AR-15, Safety Selector Detent for AR-15, Safety Selector spring Take Down Pivot Pin Detent (2 needed per rifle), Detent Take Down Spring (2 needed per rifle), Hammer Spring mil spec, 1/8 x 5/8 coiled Roll Pin for Trigger Guard, Trigger and Hammer Pin for AR-15 (2 needed per rifle) and a Trigger Spring single stage mil-spec
NBS — Our In-House Brand for Builders Who Demand Reliable Performance and Real Value.
Designed for builders who demand reliable performance and real value without unnecessary hype or inflated pricing. NBS stands for "No Bullshit."
Built on Strong Industry Partnerships
Through the strong partnerships AR15Discounts has built with trusted suppliers and vendors, we regularly gain access to premium components often manufactured by or for leading industry names. By purchasing these in volume, we bring them to you under the NBS label, ensuring proven quality reaches your build at a fair price, without the added cost of extensive marketing.
Quality You Can Trust
Every NBS product is specified to the exacting standards we apply to our own rifles. Each component features precision CNC machining, American-made key components where it counts, robust materials, dependable steels, and durable finishes engineered for long-term reliability. These items are either sourced from reputable OEMs or carefully assembled in-house using established name-brand elements, maintaining consistent excellence throughout the lineup.
Complete Solutions for Serious Builders
From stripped and complete uppers to bolt carrier groups, handguards, lower parts kits, and beyond, NBS provides a unified, affordable selection that allows you to complete confident, high-performing builds.
Backed by a Limited Lifetime Warranty
All NBS products come with our Limited Lifetime Warranty for the original owner, covering defects in materials and workmanship. AR15Discounts stands firmly behind these parts because, as shooters ourselves, we use and trust them, delivering honest value and gear you can rely on.
| Weight | 0.496 oz |
|---|---|
| MPN | AM-556-LW-OOPS-KIT |
| UPC | 999991348 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
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US
GREAT KIT TO HAVE
This is a super spare part kit to toss in your range bag and one for the bench. I purchased two and will get more when they are back in stock. Great price, handy, and convenient. I'll probably snag one or two for a friend as well, they are cheap enough and so is he, lol. Arrived quickly, great customer service from AR15DISCOUNTS.
USExtra small spare parts AR
Got package fast. Just what I needed for those small parts easy to drop.
USA must have if you are assembling ar’s
Great kit for anyone who builds there own guns these springs shoot out like a missile into oblivion never to be found again. Great spares
USgreat deal,
fast shipping, great items, great bang for the buck,would buy again, cant wait to get them installed an to the range,good to have on hand
USGreat price and convenient
As of this date the item is sold out and I can see why! I should have purchased a few of these just to have on hand. I will be returning for other items I see here that seem to have almost impossibly low prices.
