Service Rifle Lower Kit w/ Geissele Trigger, UBR stock, Aero Precision Lower and more



Weight 3.00 lbs

The lower is an ATF regulated item and must be shipped to a licensed FFL.

Complete Lower - Service Rifle Legal Lower Bundle

PLEASE NOTE:  We may be unable to ship your lower bundle immediately if any of the items included in the bundle are on backorder.  At this time we are experiencing longer than usual lead times on some of these items. 

Our Service Rifle Lower Bundle includes a Geissele National Match trigger, Magpul UBR Gen 1 Buttstock (including buffer and spring), Magpul BAD Lever, Sling Mount, a Lower Parts Kit and a Weight for the UBR buttstock, all with an Aero Precision Gen 2 lower. 

The Magpul Gen 1 Buttstock has been discontinued by Magpul but remains the preferred adjustable buttstock for Service Rifle -- and White Oak is your only source for this hard-to-find item.

The Magpul BAD Lever bolt release has been approved for service rifle competition and allows you to access your bolt release without reaching over your rifle or breaking position. 

A Geissele National Match Trigger -- not much to say about this -- Geissele makes the best triggers out there, we wouldn't shoot anything else.

A Lower Parts Kit is included which has all the other springs, pins, and small parts to complete the lower.

Our new & improved Sling Mount for Magpul UBR Gen 1 has a clean attractive design and will work with 1¼" slings (both leather and web). This is the perfect solution for those who prefer a bottom mount rear sling. All metal construction and made in the USA. The sling mount attaches to the stock using the original cover screws supplied by Magpul.

White Oak's Lead Weight to add to your Magpul UBR adjustable buttstock. The weight fits snugly inside the triangular cavity in the center of the stock. It adds almost a pound (15 ounces) to your UBR stock. This item is designed for use with Gen 1 UBR stock only. Made in the USA.

OPTIONAL ASSEMBLY: Select the optional Assembly checkbox and we will install the trigger, BAD Lever, sling mount, weight and assemble the complete lower prior to shipping.

Note: The lower is an ATF regulated item and must be shipped to a licensed FFL. Please contact us via phone (309-376-2288) or send an email to with the name and contact information of your preferred FFL, or have your FFL dealer contact us directly.

DISCLAIMER: By finalizing your online order, you are hereby declaring that you are purchasing the firearm solely for your ownership; that you are not prohibited by Federal and State Law from receiving or possessing a firearm; that you will be the sole person to complete an ATF Form 4473 and undergo a background check; and that the provided credit card information is issued and is the address of the person to whom is purchasing the firearm. 

This bundle will ship in one package to your FFL dealer. Illinois and surrounding state residents who wish to purchase directly from White Oak must call to make an appointment, transfers are done by appointment only.