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Top Sellers

6.5x47mm  LAPUA Reloading Brass (100)
6.5x47mm LAPUA Reloading Brass (100)
$141.99
BERGER 6.5 156 gr EOL ELITE HUNTER
BERGER 6.5 156 gr EOL ELITE HUNTER
$61.49
LAPUA 300 PRC BRASS 100ct
LAPUA 300 PRC BRASS 100ct
$184.46 Original price $155.42

New Releases

GRAY OPS TACTICAL DBM
GRAY OPS TACTICAL DBM
$265.00
DEFIANCE DEVIANT COMP SHORT ACTION RIGHT HAND .308 BOLT FACE
DEFIANCE DEVIANT COMP SHORT ACTION RIGHT HAND .308 BOLT FACE
$1,495.00
ACE MAX Muzzle Brakes
ACE MAX Muzzle Brakes
$225.00
MANNERS PRO HUNTER ADJUSTABLE SHORT ACTION RIGHT HAND HIGH PLAINS MOLDED w/ mini chassis
MANNERS PRO HUNTER ADJUSTABLE SHORT ACTION RIGHT HAND HIGH PLAINS MOLDED w/ mini chassis
$1,129.00
TRIGGERTECH GLOCK CERTIFIED SPECIAL TRIGER
TRIGGERTECH GLOCK CERTIFIED SPECIAL TRIGER
$274.99

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BOTTOM METAL

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TS Custom Long Action Extended Mag Box
TS Custom Long Action Extended Mag Box
$24.00
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Bottom Metal Rifle Parts

Get info on BDL Bottom Metal, DBM Bottom Metal, and in letting to convert your rifle.

On The Mark brings you the best rifle parts and accessories on the market, including premium bottom metal systems. Upgrade and customize your rifle with new BDL bottom metal or convert it to use a detachable box magazine. Shop with us today and enjoy our unbeatable competitive prices on the products you love.


We have bottom metal upgrades for long and short action rifles manufactured by respected names like KMW, BAT, American Precision, Hawkins Precision, Surgeon, and Remington. We also have short and long action magazine springs, magazine boxes, and BAT machine action screws. Whatever you are in the market for, we have the perfect set of products and supplies for you.


In our mission to provide you with only the best precision rifle parts, we stock only quality designs that won't open under recoil or cause accidental grazing between shots. Some rifles will require letting to install new bottom metal. 

We are glad to have you here at On the Mark. With our commitment to customer satisfaction, we offer impeccable customer support. 

Feel free to contact OTM Tactical with questions, comments, or concerns. Our expert team will be more than happy to give you the information you need. We appreciate your business, and we can't wait to serve you again. 

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OTM ships to lower 48 states for a flat rate of $9.99
(MAXIMUM OF 20 POUNDS UNDER ONE SHIPPING CHARGE), excluding Hazmat.
Shipping to Alaska & Hawaii will be charged at carrier cost.
No International Orders.

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If you try to make duplicate orders or place the order under someone we reserve the right to cancel any orders after your first.
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Please select the “Join Waitlist” button on the product page and enter your email address.  
You will be notified when that specific product comes back in stock via email.
We reserve the right to place product limitations on certain items to allow all our customers the chance to have fair access to items that are in limited supply.



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