Name: M&M Guns and Supplies
Address: 5578 Salt River Road, St. Peters, MO, 63376, US
Telephone: +16363871199

What they offer

Platforms: AR-15
Work: Cleaning, gunsmithing, machining, optics mounting, sight installation and trigger work

Sales: In store and online
Transfers: FFL transfers
Services: NFA transfers
Sells: Accessories, ammunition, firearms (new and used), knives, NFA items, optics, parts and suppressors

Prices

As published by the business.

Pre-Owned firearm, stripped receiver or frame transfer $35.00 per serial number
New firearm transfer fee $50.00 per serial number
NFA Transfer fee (Suppressors, SBRs, etc.) $150.00 per NFA item
Bore sighting $20.00 per firearm
Storage fee for firearms not picked up within 30 days $20.00 per week · Begins on day 31 after arrival notification; storage fees must be paid in full before firearm release.
Scope Mounting $49.99 per installation
Firearm cleaning — Pistols & Rifles $55.00 starting at
Expedited Same-Day Service $60.00 starting at
Sight Installation $60.00 starting at
Trigger Installation $65.00 starting at
Firearm cleaning — AR-Platform firearms $75.00 starting at
Firearm cleaning — Shotguns $95.00 starting at
General Gunsmith Labor $125.00 starting at, per hour
Precision Machining $170.00 per hour · $85 minimum

The nearest gunsmiths USA Arms lists, by distance.

Sources: mmguns.com.